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Connection terminated during handshake #10

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tahmid56 opened this issue Apr 16, 2020 · 3 comments
Open

Connection terminated during handshake #10

tahmid56 opened this issue Apr 16, 2020 · 3 comments

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@tahmid56
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image
This happens when i press pub get.What can i do to solve this?
@suptejas
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suptejas commented Jun 4, 2020

I am also getting the same problem! Please help!

@lewisstevens1
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can you please provide your flutter doctor -v
and your flutter pub get --verbose

@suptejas
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suptejas commented Jul 1, 2020

I've actually come to realise, the when I restart my system because pub get takes too much time, and then when I run pub get, it works, however, after running it one or two more times, it starts taking too long and it doesnt work as it should. Due to this, I am restarting my Mac every time flutter pub get fails:

Flutter doctor -v:

[✓] Flutter (Channel stable, v1.17.4, on Mac OS X 10.15.5 19F101, locale en-GB)
    • Flutter version 1.17.4 at /Users/tejas/Developer/flutter
    • Framework revision 1ad9baa8b9 (13 days ago), 2020-06-17 14:41:16 -0700
    • Engine revision ee76268252
    • Dart version 2.8.4

 
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at /Users/tejas/Library/Android/sdk
    • Platform android-29, build-tools 29.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 11.5)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 11.5, Build version 11E608c
    • CocoaPods version 1.9.3

[✓] Android Studio (version 4.0)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin version 46.0.2
    • Dart plugin version 193.7361
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593)

[!] IntelliJ IDEA Ultimate Edition (version 2020.1.2)
    • IntelliJ at /Applications/IntelliJ IDEA.app
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
    • For information about installing plugins, see
      https://flutter.dev/intellij-setup/#installing-the-plugins

[✓] Connected device (1 available)
    • iPhone 11 Pro Max • 073A5874-BDCF-4E91-8BD4-B96B819E8052 • ios • com.apple.CoreSimulator.SimRuntime.iOS-13-5 (simulator)

Flutter pub get --verbose:

[        ]     | package:http/src/base_client.dart 32:7              BaseClient.get
[        ]     | package:http/src/base_client.dart 117:12            BaseClient.read
[  +99 ms]     | package:pub/src/source/hosted.dart 185:31           BoundHostedSource._fetchVersions
[        ]     | dart:async                                          _CustomZone.runUnary
[        ]     | package:pub/src/rate_limited_scheduler.dart 82:30   RateLimitedScheduler._processNextTask.runJob
[        ]     | package:pub/src/rate_limited_scheduler.dart 85:30   RateLimitedScheduler._processNextTask
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pool/pool.dart 126:18                       Pool.withResource.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          Future.then
[        ]     | package:pool/pool.dart 125:22                       Pool.withResource
[  +54 ms]     | package:pub/src/rate_limited_scheduler.dart 129:37  RateLimitedScheduler.schedule.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          scheduleMicrotask
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:7   RateLimitedScheduler.schedule
[        ]     | package:pub/src/source/hosted.dart 231:39           BoundHostedSource.doGetVersions
[        ]     | package:pub/src/source.dart 168:12                  BoundSource.getVersions
[        ]     | package:pub/src/solver/package_lister.dart 76:44    PackageLister._versions.<fn>.<fn>
[        ]     | dart:async                                          runZoned
[   +1 ms]     | package:pub/src/http.dart 279:10                    withDependencyType
[   +1 ms]     | package:pub/src/solver/package_lister.dart 75:33    PackageLister._versions.<fn>
[  +12 ms]     | dart:async                                          new Future.sync
[        ]     | package:async/src/async_memoizer.dart 43:45         AsyncMemoizer.runOnce
[        ]     | package:pub/src/solver/package_lister.dart 74:58    PackageLister._versions
[   +1 ms]     | package:pub/src/solver/package_lister.dart 111:21   PackageLister.countVersions
[   +1 ms]     | package:pub/src/solver/version_solver.dart 356:44   VersionSolver._choosePackageVersion.<fn>
[   +2 ms]     | dart:async                                          Future.wait
[        ]     | package:pub/src/utils.dart 295:39                   minByAsync
[   +3 ms]     | package:pub/src/solver/version_solver.dart 352:25   VersionSolver._choosePackageVersion
[        ]     | package:pub/src/solver/version_solver.dart 98:24    VersionSolver.solve.<fn>
[  +10 ms]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver._choosePackageVersion
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/package_lister.dart          PackageLister.incompatibilitiesFor
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver.solve.<fn>
[        ]     | dart:async                                          runZoned
[        ]     | package:pub/src/source/hosted.dart 502:20           BoundHostedSource.withPrefetching.<fn>
[  +20 ms]     | package:pub/src/rate_limited_scheduler.dart 105:28  RateLimitedScheduler.withPrescheduling
[        ]     | package:pub/src/source/hosted.dart 501:29           BoundHostedSource.withPrefetching
[        ]     | package:pub/src/solver/version_solver.dart 94:40    VersionSolver.solve
[        ]     | package:pub/src/solver.dart 37:5                    resolveVersions
[        ]     | package:pub/src/entrypoint.dart 218:13              Entrypoint.acquireDependencies.<fn>
[        ]     | package:pub/src/log.dart 394:18                     progress
[        ]     | package:pub/src/entrypoint.dart 216:24              Entrypoint.acquireDependencies
[        ]     | package:pub/src/command/get.dart 46:23              GetCommand.run
[   +1 ms]     | package:args/command_runner.dart 197:27             CommandRunner.runCommand
[  +15 ms]     | package:pub/src/command_runner.dart 191:39          PubCommandRunner.runCommand.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pub/src/utils.dart 113:12                   captureErrors.wrappedCallback
[        ]     | package:stack_trace                                 Chain.capture
[        ]     | package:pub/src/utils.dart 126:11                   captureErrors
[        ]     | package:pub/src/command_runner.dart 191:13          PubCommandRunner.runCommand
[ +529 ms] IO  : Retry #1 for GET https://pub.dartlang.org/api/packages/sqflite...
[        ] IO  : HTTP GET https://pub.dartlang.org/api/packages/sqflite
[        ]     | Accept: application/vnd.pub.v2+json
[        ]     | X-Pub-OS: macos
[        ]     | X-Pub-Command: get
[        ]     | X-Pub-Session-ID: 5A8408AE-B48A-404D-9CBC-4B00D6DF1DB9
[        ]     | X-Pub-Environment: flutter_cli:get
[        ]     | X-Pub-Reason: direct
[        ]     | user-agent: Dart pub 2.8.4
[   +3 ms] IO  : HTTP error:
[        ]     | SocketException: Failed host lookup: 'pub.dartlang.org' (OS Error: nodename nor servname provided, or not known, errno = 8)
[        ]     | 
[        ]     | dart:_http                                          _HttpClient.openUrl
[        ]     | package:http/src/io_client.dart 33:36               IOClient.send
[        ]     | package:pub/src/http.dart 66:43                     _PubHttpClient.send
[        ]     | package:http_retry/http_retry.dart 97:33            RetryClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/http.dart 165:39                    _ThrowingClient.send
[        ]     | package:http_throttle/http_throttle.dart 33:31      ThrottleClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:http/src/base_client.dart 169:38            BaseClient._sendUnstreamed
[        ]     | package:http/src/base_client.dart 32:7              BaseClient.get
[        ]     | package:http/src/base_client.dart 117:12            BaseClient.read
[   +1 ms]     | package:pub/src/source/hosted.dart 185:31           BoundHostedSource._fetchVersions
[   +1 ms]     | dart:async                                          _CustomZone.runUnary
[        ]     | package:pub/src/rate_limited_scheduler.dart 82:30   RateLimitedScheduler._processNextTask.runJob
[        ]     | package:pub/src/rate_limited_scheduler.dart 85:30   RateLimitedScheduler._processNextTask
[        ]     | dart:async                                          new Future.sync
[   +1 ms]     | package:pool/pool.dart 126:18                       Pool.withResource.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          Future.then
[   +1 ms]     | package:pool/pool.dart 125:22                       Pool.withResource
[   +4 ms]     | package:pub/src/rate_limited_scheduler.dart 129:37  RateLimitedScheduler.schedule.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          scheduleMicrotask
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:7   RateLimitedScheduler.schedule
[        ]     | package:pub/src/source/hosted.dart 231:39           BoundHostedSource.doGetVersions
[        ]     | package:pub/src/source.dart 168:12                  BoundSource.getVersions
[        ]     | package:pub/src/solver/package_lister.dart 76:44    PackageLister._versions.<fn>.<fn>
[        ]     | dart:async                                          runZoned
[        ]     | package:pub/src/http.dart 279:10                    withDependencyType
[        ]     | package:pub/src/solver/package_lister.dart 75:33    PackageLister._versions.<fn>
[   +5 ms]     | dart:async                                          new Future.sync
[        ]     | package:async/src/async_memoizer.dart 43:45         AsyncMemoizer.runOnce
[        ]     | package:pub/src/solver/package_lister.dart 74:58    PackageLister._versions
[        ]     | package:pub/src/solver/package_lister.dart 111:21   PackageLister.countVersions
[        ]     | package:pub/src/solver/version_solver.dart 356:44   VersionSolver._choosePackageVersion.<fn>
[        ]     | dart:async                                          Future.wait
[        ]     | package:pub/src/utils.dart 295:39                   minByAsync
[        ]     | package:pub/src/solver/version_solver.dart 352:25   VersionSolver._choosePackageVersion
[        ]     | package:pub/src/solver/version_solver.dart 98:24    VersionSolver.solve.<fn>
[   +6 ms]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver._choosePackageVersion
[   +1 ms]     | dart:async                                          _completeOnAsyncReturn
[   +1 ms]     | package:pub/src/solver/package_lister.dart          PackageLister.incompatibilitiesFor
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver.solve.<fn>
[        ]     | dart:async                                          runZoned
[        ]     | package:pub/src/source/hosted.dart 502:20           BoundHostedSource.withPrefetching.<fn>
[   +4 ms]     | package:pub/src/rate_limited_scheduler.dart 105:28  RateLimitedScheduler.withPrescheduling
[        ]     | package:pub/src/source/hosted.dart 501:29           BoundHostedSource.withPrefetching
[        ]     | package:pub/src/solver/version_solver.dart 94:40    VersionSolver.solve
[        ]     | package:pub/src/solver.dart 37:5                    resolveVersions
[        ]     | package:pub/src/entrypoint.dart 218:13              Entrypoint.acquireDependencies.<fn>
[        ]     | package:pub/src/log.dart 394:18                     progress
[        ]     | package:pub/src/entrypoint.dart 216:24              Entrypoint.acquireDependencies
[        ]     | package:pub/src/command/get.dart 46:23              GetCommand.run
[        ]     | package:args/command_runner.dart 197:27             CommandRunner.runCommand
[   +2 ms]     | package:pub/src/command_runner.dart 191:39          PubCommandRunner.runCommand.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pub/src/utils.dart 113:12                   captureErrors.wrappedCallback
[        ]     | package:stack_trace                                 Chain.capture
[        ]     | package:pub/src/utils.dart 126:11                   captureErrors
[        ]     | package:pub/src/command_runner.dart 191:13          PubCommandRunner.runCommand
[ +749 ms] IO  : Retry #2 for GET https://pub.dartlang.org/api/packages/sqflite...
[        ] IO  : HTTP GET https://pub.dartlang.org/api/packages/sqflite
[        ]     | Accept: application/vnd.pub.v2+json
[        ]     | X-Pub-OS: macos
[        ]     | X-Pub-Command: get
[        ]     | X-Pub-Session-ID: 5A8408AE-B48A-404D-9CBC-4B00D6DF1DB9
[        ]     | X-Pub-Environment: flutter_cli:get
[        ]     | X-Pub-Reason: direct
[        ]     | user-agent: Dart pub 2.8.4
[   +2 ms] IO  : HTTP error:
[        ]     | SocketException: Failed host lookup: 'pub.dartlang.org' (OS Error: nodename nor servname provided, or not known, errno = 8)
[        ]     | 
[        ]     | dart:_http                                          _HttpClient.openUrl
[        ]     | package:http/src/io_client.dart 33:36               IOClient.send
[        ]     | package:pub/src/http.dart 66:43                     _PubHttpClient.send
[        ]     | package:http_retry/http_retry.dart 97:33            RetryClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/http.dart 165:39                    _ThrowingClient.send
[        ]     | package:http_throttle/http_throttle.dart 33:31      ThrottleClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:http/src/base_client.dart 169:38            BaseClient._sendUnstreamed
[        ]     | package:http/src/base_client.dart 32:7              BaseClient.get
[        ]     | package:http/src/base_client.dart 117:12            BaseClient.read
[        ]     | package:pub/src/source/hosted.dart 185:31           BoundHostedSource._fetchVersions
[        ]     | dart:async                                          _CustomZone.runUnary
[        ]     | package:pub/src/rate_limited_scheduler.dart 82:30   RateLimitedScheduler._processNextTask.runJob
[        ]     | package:pub/src/rate_limited_scheduler.dart 85:30   RateLimitedScheduler._processNextTask
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pool/pool.dart 126:18                       Pool.withResource.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          Future.then
[   +3 ms]     | package:pool/pool.dart 125:22                       Pool.withResource
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:37  RateLimitedScheduler.schedule.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          scheduleMicrotask
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:7   RateLimitedScheduler.schedule
[        ]     | package:pub/src/source/hosted.dart 231:39           BoundHostedSource.doGetVersions
[        ]     | package:pub/src/source.dart 168:12                  BoundSource.getVersions
[        ]     | package:pub/src/solver/package_lister.dart 76:44    PackageLister._versions.<fn>.<fn>
[        ]     | dart:async                                          runZoned
[   +3 ms]     | package:pub/src/http.dart 279:10                    withDependencyType
[        ]     | package:pub/src/solver/package_lister.dart 75:33    PackageLister._versions.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:async/src/async_memoizer.dart 43:45         AsyncMemoizer.runOnce
[        ]     | package:pub/src/solver/package_lister.dart 74:58    PackageLister._versions
[        ]     | package:pub/src/solver/package_lister.dart 111:21   PackageLister.countVersions
[        ]     | package:pub/src/solver/version_solver.dart 356:44   VersionSolver._choosePackageVersion.<fn>
[        ]     | dart:async                                          Future.wait
[        ]     | package:pub/src/utils.dart 295:39                   minByAsync
[   +3 ms]     | package:pub/src/solver/version_solver.dart 352:25   VersionSolver._choosePackageVersion
[        ]     | package:pub/src/solver/version_solver.dart 98:24    VersionSolver.solve.<fn>
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver._choosePackageVersion
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/package_lister.dart          PackageLister.incompatibilitiesFor
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver.solve.<fn>
[   +7 ms]     | dart:async                                          runZoned
[        ]     | package:pub/src/source/hosted.dart 502:20           BoundHostedSource.withPrefetching.<fn>
[        ]     | package:pub/src/rate_limited_scheduler.dart 105:28  RateLimitedScheduler.withPrescheduling
[        ]     | package:pub/src/source/hosted.dart 501:29           BoundHostedSource.withPrefetching
[        ]     | package:pub/src/solver/version_solver.dart 94:40    VersionSolver.solve
[        ]     | package:pub/src/solver.dart 37:5                    resolveVersions
[        ]     | package:pub/src/entrypoint.dart 218:13              Entrypoint.acquireDependencies.<fn>
[        ]     | package:pub/src/log.dart 394:18                     progress
[        ]     | package:pub/src/entrypoint.dart 216:24              Entrypoint.acquireDependencies
[   +3 ms]     | package:pub/src/command/get.dart 46:23              GetCommand.run
[        ]     | package:args/command_runner.dart 197:27             CommandRunner.runCommand
[        ]     | package:pub/src/command_runner.dart 191:39          PubCommandRunner.runCommand.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pub/src/utils.dart 113:12                   captureErrors.wrappedCallback
[        ]     | package:stack_trace                                 Chain.capture
[        ]     | package:pub/src/utils.dart 126:11                   captureErrors
[        ]     | package:pub/src/command_runner.dart 191:13          PubCommandRunner.runCommand
[+1578 ms] IO  : Retry #3 for GET https://pub.dartlang.org/api/packages/sqflite...
[        ] IO  : HTTP GET https://pub.dartlang.org/api/packages/sqflite
[        ]     | Accept: application/vnd.pub.v2+json
[        ]     | X-Pub-OS: macos
[        ]     | X-Pub-Command: get
[        ]     | X-Pub-Session-ID: 5A8408AE-B48A-404D-9CBC-4B00D6DF1DB9
[        ]     | X-Pub-Environment: flutter_cli:get
[        ]     | X-Pub-Reason: direct
[        ]     | user-agent: Dart pub 2.8.4
[   +2 ms] IO  : HTTP error:
[        ]     | SocketException: Failed host lookup: 'pub.dartlang.org' (OS Error: nodename nor servname provided, or not known, errno = 8)
[        ]     | 
[        ]     | dart:_http                                          _HttpClient.openUrl
[        ]     | package:http/src/io_client.dart 33:36               IOClient.send
[        ]     | package:pub/src/http.dart 66:43                     _PubHttpClient.send
[        ]     | package:http_retry/http_retry.dart 97:33            RetryClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/http.dart 165:39                    _ThrowingClient.send
[        ]     | package:http_throttle/http_throttle.dart 33:31      ThrottleClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:http/src/base_client.dart 169:38            BaseClient._sendUnstreamed
[        ]     | package:http/src/base_client.dart 32:7              BaseClient.get
[        ]     | package:http/src/base_client.dart 117:12            BaseClient.read
[        ]     | package:pub/src/source/hosted.dart 185:31           BoundHostedSource._fetchVersions
[        ]     | dart:async                                          _CustomZone.runUnary
[        ]     | package:pub/src/rate_limited_scheduler.dart 82:30   RateLimitedScheduler._processNextTask.runJob
[   +1 ms]     | package:pub/src/rate_limited_scheduler.dart 85:30   RateLimitedScheduler._processNextTask
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pool/pool.dart 126:18                       Pool.withResource.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          Future.then
[   +6 ms]     | package:pool/pool.dart 125:22                       Pool.withResource
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:37  RateLimitedScheduler.schedule.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          scheduleMicrotask
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:7   RateLimitedScheduler.schedule
[        ]     | package:pub/src/source/hosted.dart 231:39           BoundHostedSource.doGetVersions
[        ]     | package:pub/src/source.dart 168:12                  BoundSource.getVersions
[        ]     | package:pub/src/solver/package_lister.dart 76:44    PackageLister._versions.<fn>.<fn>
[        ]     | dart:async                                          runZoned
[   +8 ms]     | package:pub/src/http.dart 279:10                    withDependencyType
[        ]     | package:pub/src/solver/package_lister.dart 75:33    PackageLister._versions.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:async/src/async_memoizer.dart 43:45         AsyncMemoizer.runOnce
[        ]     | package:pub/src/solver/package_lister.dart 74:58    PackageLister._versions
[        ]     | package:pub/src/solver/package_lister.dart 111:21   PackageLister.countVersions
[        ]     | package:pub/src/solver/version_solver.dart 356:44   VersionSolver._choosePackageVersion.<fn>
[        ]     | dart:async                                          Future.wait
[        ]     | package:pub/src/utils.dart 295:39                   minByAsync
[   +3 ms]     | package:pub/src/solver/version_solver.dart 352:25   VersionSolver._choosePackageVersion
[        ]     | package:pub/src/solver/version_solver.dart 98:24    VersionSolver.solve.<fn>
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver._choosePackageVersion
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/package_lister.dart          PackageLister.incompatibilitiesFor
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver.solve.<fn>
[   +8 ms]     | dart:async                                          runZoned
[        ]     | package:pub/src/source/hosted.dart 502:20           BoundHostedSource.withPrefetching.<fn>
[        ]     | package:pub/src/rate_limited_scheduler.dart 105:28  RateLimitedScheduler.withPrescheduling
[        ]     | package:pub/src/source/hosted.dart 501:29           BoundHostedSource.withPrefetching
[        ]     | package:pub/src/solver/version_solver.dart 94:40    VersionSolver.solve
[        ]     | package:pub/src/solver.dart 37:5                    resolveVersions
[        ]     | package:pub/src/entrypoint.dart 218:13              Entrypoint.acquireDependencies.<fn>
[        ]     | package:pub/src/log.dart 394:18                     progress
[        ]     | package:pub/src/entrypoint.dart 216:24              Entrypoint.acquireDependencies
[   +3 ms]     | package:pub/src/command/get.dart 46:23              GetCommand.run
[        ]     | package:args/command_runner.dart 197:27             CommandRunner.runCommand
[        ]     | package:pub/src/command_runner.dart 191:39          PubCommandRunner.runCommand.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pub/src/utils.dart 113:12                   captureErrors.wrappedCallback
[        ]     | package:stack_trace                                 Chain.capture
[        ]     | package:pub/src/utils.dart 126:11                   captureErrors
[        ]     | package:pub/src/command_runner.dart 191:13          PubCommandRunner.runCommand
[+29966 ms] IO  : Retry #4 for GET https://pub.dartlang.org/api/packages/sqflite...
[        ] MSG : It looks like pub.dartlang.org is having some trouble.
[        ]     | Pub will wait for a while before trying to connect again.
[        ] IO  : HTTP GET https://pub.dartlang.org/api/packages/sqflite
[        ]     | Accept: application/vnd.pub.v2+json
[        ]     | X-Pub-OS: macos
[        ]     | X-Pub-Command: get
[        ]     | X-Pub-Session-ID: 5A8408AE-B48A-404D-9CBC-4B00D6DF1DB9
[        ]     | X-Pub-Environment: flutter_cli:get
[        ]     | X-Pub-Reason: direct
[        ]     | user-agent: Dart pub 2.8.4
[   +2 ms] IO  : HTTP error:
[        ]     | SocketException: Failed host lookup: 'pub.dartlang.org' (OS Error: nodename nor servname provided, or not known, errno = 8)
[        ]     | 
[        ]     | dart:_http                                          _HttpClient.openUrl
[        ]     | package:http/src/io_client.dart 33:36               IOClient.send
[        ]     | package:pub/src/http.dart 66:43                     _PubHttpClient.send
[        ]     | package:http_retry/http_retry.dart 97:33            RetryClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/http.dart 165:39                    _ThrowingClient.send
[        ]     | package:http_throttle/http_throttle.dart 33:31      ThrottleClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:http/src/base_client.dart 169:38            BaseClient._sendUnstreamed
[        ]     | package:http/src/base_client.dart 32:7              BaseClient.get
[        ]     | package:http/src/base_client.dart 117:12            BaseClient.read
[        ]     | package:pub/src/source/hosted.dart 185:31           BoundHostedSource._fetchVersions
[        ]     | dart:async                                          _CustomZone.runUnary
[   +1 ms]     | package:pub/src/rate_limited_scheduler.dart 82:30   RateLimitedScheduler._processNextTask.runJob
[        ]     | package:pub/src/rate_limited_scheduler.dart 85:30   RateLimitedScheduler._processNextTask
[        ]     | dart:async                                          new Future.sync
[   +4 ms]     | package:pool/pool.dart 126:18                       Pool.withResource.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          Future.then
[        ]     | package:pool/pool.dart 125:22                       Pool.withResource
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:37  RateLimitedScheduler.schedule.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          scheduleMicrotask
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:7   RateLimitedScheduler.schedule
[        ]     | package:pub/src/source/hosted.dart 231:39           BoundHostedSource.doGetVersions
[   +2 ms]     | package:pub/src/source.dart 168:12                  BoundSource.getVersions
[        ]     | package:pub/src/solver/package_lister.dart 76:44    PackageLister._versions.<fn>.<fn>
[        ]     | dart:async                                          runZoned
[        ]     | package:pub/src/http.dart 279:10                    withDependencyType
[        ]     | package:pub/src/solver/package_lister.dart 75:33    PackageLister._versions.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:async/src/async_memoizer.dart 43:45         AsyncMemoizer.runOnce
[        ]     | package:pub/src/solver/package_lister.dart 74:58    PackageLister._versions
[        ]     | package:pub/src/solver/package_lister.dart 111:21   PackageLister.countVersions
[   +2 ms]     | package:pub/src/solver/version_solver.dart 356:44   VersionSolver._choosePackageVersion.<fn>
[        ]     | dart:async                                          Future.wait
[        ]     | package:pub/src/utils.dart 295:39                   minByAsync
[        ]     | package:pub/src/solver/version_solver.dart 352:25   VersionSolver._choosePackageVersion
[        ]     | package:pub/src/solver/version_solver.dart 98:24    VersionSolver.solve.<fn>
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver._choosePackageVersion
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/package_lister.dart          PackageLister.incompatibilitiesFor
[   +2 ms]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver.solve.<fn>
[        ]     | dart:async                                          runZoned
[        ]     | package:pub/src/source/hosted.dart 502:20           BoundHostedSource.withPrefetching.<fn>
[        ]     | package:pub/src/rate_limited_scheduler.dart 105:28  RateLimitedScheduler.withPrescheduling
[        ]     | package:pub/src/source/hosted.dart 501:29           BoundHostedSource.withPrefetching
[        ]     | package:pub/src/solver/version_solver.dart 94:40    VersionSolver.solve
[        ]     | package:pub/src/solver.dart 37:5                    resolveVersions
[   +2 ms]     | package:pub/src/entrypoint.dart 218:13              Entrypoint.acquireDependencies.<fn>
[        ]     | package:pub/src/log.dart 394:18                     progress
[        ]     | package:pub/src/entrypoint.dart 216:24              Entrypoint.acquireDependencies
[        ]     | package:pub/src/command/get.dart 46:23              GetCommand.run
[        ]     | package:args/command_runner.dart 197:27             CommandRunner.runCommand
[        ]     | package:pub/src/command_runner.dart 191:39          PubCommandRunner.runCommand.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pub/src/utils.dart 113:12                   captureErrors.wrappedCallback
[        ]     | package:stack_trace                                 Chain.capture
[   +2 ms]     | package:pub/src/utils.dart 126:11                   captureErrors
[        ]     | package:pub/src/command_runner.dart 191:13          PubCommandRunner.runCommand
[+29974 ms] IO  : Retry #5 for GET https://pub.dartlang.org/api/packages/sqflite...
[        ] IO  : HTTP GET https://pub.dartlang.org/api/packages/sqflite
[        ]     | Accept: application/vnd.pub.v2+json
[        ]     | X-Pub-OS: macos
[        ]     | X-Pub-Command: get
[        ]     | X-Pub-Session-ID: 5A8408AE-B48A-404D-9CBC-4B00D6DF1DB9
[        ]     | X-Pub-Environment: flutter_cli:get
[        ]     | X-Pub-Reason: direct
[        ]     | user-agent: Dart pub 2.8.4
[   +3 ms] IO  : HTTP error:
[        ]     | SocketException: Failed host lookup: 'pub.dartlang.org' (OS Error: nodename nor servname provided, or not known, errno = 8)
[        ]     | 
[        ]     | dart:_http                                          _HttpClient.openUrl
[        ]     | package:http/src/io_client.dart 33:36               IOClient.send
[        ]     | package:pub/src/http.dart 66:43                     _PubHttpClient.send
[        ]     | package:http_retry/http_retry.dart 97:33            RetryClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/http.dart 165:39                    _ThrowingClient.send
[        ]     | package:http_throttle/http_throttle.dart 33:31      ThrottleClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:http/src/base_client.dart 169:38            BaseClient._sendUnstreamed
[        ]     | package:http/src/base_client.dart 32:7              BaseClient.get
[        ]     | package:http/src/base_client.dart 117:12            BaseClient.read
[        ]     | package:pub/src/source/hosted.dart 185:31           BoundHostedSource._fetchVersions
[        ]     | dart:async                                          _CustomZone.runUnary
[        ]     | package:pub/src/rate_limited_scheduler.dart 82:30   RateLimitedScheduler._processNextTask.runJob
[        ]     | package:pub/src/rate_limited_scheduler.dart 85:30   RateLimitedScheduler._processNextTask
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pool/pool.dart 126:18                       Pool.withResource.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          Future.then
[        ]     | package:pool/pool.dart 125:22                       Pool.withResource
[   +1 ms]     | package:pub/src/rate_limited_scheduler.dart 129:37  RateLimitedScheduler.schedule.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          scheduleMicrotask
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:7   RateLimitedScheduler.schedule
[        ]     | package:pub/src/source/hosted.dart 231:39           BoundHostedSource.doGetVersions
[        ]     | package:pub/src/source.dart 168:12                  BoundSource.getVersions
[        ]     | package:pub/src/solver/package_lister.dart 76:44    PackageLister._versions.<fn>.<fn>
[        ]     | dart:async                                          runZoned
[        ]     | package:pub/src/http.dart 279:10                    withDependencyType
[        ]     | package:pub/src/solver/package_lister.dart 75:33    PackageLister._versions.<fn>
[   +2 ms]     | dart:async                                          new Future.sync
[        ]     | package:async/src/async_memoizer.dart 43:45         AsyncMemoizer.runOnce
[        ]     | package:pub/src/solver/package_lister.dart 74:58    PackageLister._versions
[        ]     | package:pub/src/solver/package_lister.dart 111:21   PackageLister.countVersions
[        ]     | package:pub/src/solver/version_solver.dart 356:44   VersionSolver._choosePackageVersion.<fn>
[        ]     | dart:async                                          Future.wait
[        ]     | package:pub/src/utils.dart 295:39                   minByAsync
[        ]     | package:pub/src/solver/version_solver.dart 352:25   VersionSolver._choosePackageVersion
[        ]     | package:pub/src/solver/version_solver.dart 98:24    VersionSolver.solve.<fn>
[   +2 ms]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver._choosePackageVersion
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/package_lister.dart          PackageLister.incompatibilitiesFor
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver.solve.<fn>
[        ]     | dart:async                                          runZoned
[        ]     | package:pub/src/source/hosted.dart 502:20           BoundHostedSource.withPrefetching.<fn>
[   +2 ms]     | package:pub/src/rate_limited_scheduler.dart 105:28  RateLimitedScheduler.withPrescheduling
[        ]     | package:pub/src/source/hosted.dart 501:29           BoundHostedSource.withPrefetching
[        ]     | package:pub/src/solver/version_solver.dart 94:40    VersionSolver.solve
[        ]     | package:pub/src/solver.dart 37:5                    resolveVersions
[        ]     | package:pub/src/entrypoint.dart 218:13              Entrypoint.acquireDependencies.<fn>
[        ]     | package:pub/src/log.dart 394:18                     progress
[        ]     | package:pub/src/entrypoint.dart 216:24              Entrypoint.acquireDependencies
[        ]     | package:pub/src/command/get.dart 46:23              GetCommand.run
[        ]     | package:args/command_runner.dart 197:27             CommandRunner.runCommand
[   +1 ms]     | package:pub/src/command_runner.dart 191:39          PubCommandRunner.runCommand.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pub/src/utils.dart 113:12                   captureErrors.wrappedCallback
[        ]     | package:stack_trace                                 Chain.capture
[        ]     | package:pub/src/utils.dart 126:11                   captureErrors
[   +1 ms]     | package:pub/src/command_runner.dart 191:13          PubCommandRunner.runCommand
[+29985 ms] IO  : Retry #6 for GET https://pub.dartlang.org/api/packages/sqflite...
[        ] IO  : HTTP GET https://pub.dartlang.org/api/packages/sqflite
[        ]     | Accept: application/vnd.pub.v2+json
[        ]     | X-Pub-OS: macos
[        ]     | X-Pub-Command: get
[        ]     | X-Pub-Session-ID: 5A8408AE-B48A-404D-9CBC-4B00D6DF1DB9
[        ]     | X-Pub-Environment: flutter_cli:get
[        ]     | X-Pub-Reason: direct
[        ]     | user-agent: Dart pub 2.8.4
[   +2 ms] IO  : HTTP error:
[        ]     | SocketException: Failed host lookup: 'pub.dartlang.org' (OS Error: nodename nor servname provided, or not known, errno = 8)
[        ]     | 
[        ]     | dart:_http                                          _HttpClient.openUrl
[        ]     | package:http/src/io_client.dart 33:36               IOClient.send
[        ]     | package:pub/src/http.dart 66:43                     _PubHttpClient.send
[   +1 ms]     | package:http_retry/http_retry.dart 97:33            RetryClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/http.dart 165:39                    _ThrowingClient.send
[        ]     | package:http_throttle/http_throttle.dart 33:31      ThrottleClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:http/src/base_client.dart 169:38            BaseClient._sendUnstreamed
[        ]     | package:http/src/base_client.dart 32:7              BaseClient.get
[        ]     | package:http/src/base_client.dart 117:12            BaseClient.read
[        ]     | package:pub/src/source/hosted.dart 185:31           BoundHostedSource._fetchVersions
[        ]     | dart:async                                          _CustomZone.runUnary
[        ]     | package:pub/src/rate_limited_scheduler.dart 82:30   RateLimitedScheduler._processNextTask.runJob
[        ]     | package:pub/src/rate_limited_scheduler.dart 85:30   RateLimitedScheduler._processNextTask
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pool/pool.dart 126:18                       Pool.withResource.<fn>
[        ]     | ===== asynchronous gap ===========================
[   +3 ms]     | dart:async                                          Future.then
[        ]     | package:pool/pool.dart 125:22                       Pool.withResource
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:37  RateLimitedScheduler.schedule.<fn>
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          scheduleMicrotask
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:7   RateLimitedScheduler.schedule
[        ]     | package:pub/src/source/hosted.dart 231:39           BoundHostedSource.doGetVersions
[        ]     | package:pub/src/source.dart 168:12                  BoundSource.getVersions
[        ]     | package:pub/src/solver/package_lister.dart 76:44    PackageLister._versions.<fn>.<fn>
[        ]     | dart:async                                          runZoned
[   +2 ms]     | package:pub/src/http.dart 279:10                    withDependencyType
[        ]     | package:pub/src/solver/package_lister.dart 75:33    PackageLister._versions.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:async/src/async_memoizer.dart 43:45         AsyncMemoizer.runOnce
[        ]     | package:pub/src/solver/package_lister.dart 74:58    PackageLister._versions
[        ]     | package:pub/src/solver/package_lister.dart 111:21   PackageLister.countVersions
[        ]     | package:pub/src/solver/version_solver.dart 356:44   VersionSolver._choosePackageVersion.<fn>
[        ]     | dart:async                                          Future.wait
[        ]     | package:pub/src/utils.dart 295:39                   minByAsync
[   +1 ms]     | package:pub/src/solver/version_solver.dart 352:25   VersionSolver._choosePackageVersion
[        ]     | package:pub/src/solver/version_solver.dart 98:24    VersionSolver.solve.<fn>
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver._choosePackageVersion
[        ]     | dart:async                                          _completeOnAsyncReturn
[        ]     | package:pub/src/solver/package_lister.dart          PackageLister.incompatibilitiesFor
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                          _asyncThenWrapperHelper
[        ]     | package:pub/src/solver/version_solver.dart          VersionSolver.solve.<fn>
[   +2 ms]     | dart:async                                          runZoned
[        ]     | package:pub/src/source/hosted.dart 502:20           BoundHostedSource.withPrefetching.<fn>
[        ]     | package:pub/src/rate_limited_scheduler.dart 105:28  RateLimitedScheduler.withPrescheduling
[        ]     | package:pub/src/source/hosted.dart 501:29           BoundHostedSource.withPrefetching
[        ]     | package:pub/src/solver/version_solver.dart 94:40    VersionSolver.solve
[        ]     | package:pub/src/solver.dart 37:5                    resolveVersions
[        ]     | package:pub/src/entrypoint.dart 218:13              Entrypoint.acquireDependencies.<fn>
[        ]     | package:pub/src/log.dart 394:18                     progress
[        ]     | package:pub/src/entrypoint.dart 216:24              Entrypoint.acquireDependencies
[   +1 ms]     | package:pub/src/command/get.dart 46:23              GetCommand.run
[        ]     | package:args/command_runner.dart 197:27             CommandRunner.runCommand
[        ]     | package:pub/src/command_runner.dart 191:39          PubCommandRunner.runCommand.<fn>
[        ]     | dart:async                                          new Future.sync
[        ]     | package:pub/src/utils.dart 113:12                   captureErrors.wrappedCallback
[        ]     | package:stack_trace                                 Chain.capture
[        ]     | package:pub/src/utils.dart 126:11                   captureErrors
[        ]     | package:pub/src/command_runner.dart 191:13          PubCommandRunner.runCommand
[+29983 ms] IO  : Retry #7 for GET https://pub.dartlang.org/api/packages/sqflite...
[        ] IO  : HTTP GET https://pub.dartlang.org/api/packages/sqflite
[        ]     | Accept: application/vnd.pub.v2+json
[        ]     | X-Pub-OS: macos
[        ]     | X-Pub-Command: get
[        ]     | X-Pub-Session-ID: 5A8408AE-B48A-404D-9CBC-4B00D6DF1DB9
[        ]     | X-Pub-Environment: flutter_cli:get
[        ]     | X-Pub-Reason: direct
[        ]     | user-agent: Dart pub 2.8.4
[   +3 ms] SLVR: Version solving took 0:02:03.356687 seconds.
[        ]     | Tried 1 solutions.
[        ] FINE: Resolving dependencies finished (2:03.406s).
[   +2 ms] ERR : Could not resolve URL "https://pub.dartlang.org".
[        ] FINE: Exception type: WrappedException
[   +1 ms] FINE: package:pub/src/source/hosted.dart 437:7    BoundHostedSource._throwFriendlyError
[        ]     | package:pub/src/source/hosted.dart 188:7    BoundHostedSource._fetchVersions
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async                                  Future.catchError
[        ]     | package:pub/src/utils.dart 113:52           captureErrors.wrappedCallback
[        ]     | package:stack_trace                         Chain.capture
[        ]     | package:pub/src/utils.dart 126:11           captureErrors
[        ]     | package:pub/src/command_runner.dart 191:13  PubCommandRunner.runCommand
[   +1 ms] FINE: Wrapped exception: SocketException: Failed host lookup: 'pub.dartlang.org' (OS Error: nodename nor servname provided, or not known, errno = 8)
[        ]     | dart:async/future.dart 277:45                                 new Future.error
[        ]     | dart:_http/http_impl.dart 2402:43                             _HttpClient._getConnection.connect
[        ]     | package:stack_trace/src/stack_zone_specification.dart 129:26  StackZoneSpecification._registerUnaryCallback.<fn>.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 129:14  StackZoneSpecification._registerUnaryCallback.<fn>
[        ]     | dart:async/zone.dart 1192:38                                  _rootRunUnary
[        ]     | dart:async/zone.dart 1085:19                                  _CustomZone.runUnary
[   +1 ms]     | dart:async/future_impl.dart 159:20                            _FutureListener.handleError
[        ]     | dart:async/future_impl.dart 694:47                            Future._propagateToListeners.handleError
[        ]     | dart:async/future_impl.dart 715:24                            Future._propagateToListeners
[        ]     | dart:async/future_impl.dart 526:5                             Future._completeWithValue
[        ]     | dart:async/future_impl.dart 556:7                             Future._asyncComplete.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 119:48  StackZoneSpecification._registerCallback.<fn>
[        ]     | dart:async/zone.dart 1184:13                                  _rootRun
[   +1 ms]     | dart:async/zone.dart 1077:19                                  _CustomZone.run
[        ]     | dart:async/zone.dart 979:7                                    _CustomZone.runGuarded
[        ]     | dart:async/zone.dart 1019:23                                  _CustomZone.bindCallbackGuarded.<fn>
[   +1 ms]     | dart:async/schedule_microtask.dart 43:21                      _microtaskLoop
[        ]     | dart:async/schedule_microtask.dart 52:5                       _startMicrotaskLoop
[        ]     | dart:isolate-patch/isolate_patch.dart 118:13                  _runPendingImmediateCallback
[        ]     | dart:isolate-patch/isolate_patch.dart 169:5                   _RawReceivePortImpl._handleMessage
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async/zone.dart 1109:19                                  _CustomZone.registerUnaryCallback
[        ]     | dart:async/future_impl.dart 809:17                            _registerErrorHandler
[        ]     | dart:async/future_impl.dart 306:17                            Future.catchError
[        ]     | dart:_http/http_impl.dart 2409:12                             _HttpClient._getConnection.connect
[        ]     | dart:_http/http_impl.dart 2412:19                             _HttpClient._getConnection
[        ]     | dart:_http/http_impl.dart 2312:12                             _HttpClient._openUrl
[        ]     | dart:_http/http_impl.dart 2200:7                              _HttpClient.openUrl
[        ]     | package:http/src/io_client.dart 33:36                         IOClient.send
[        ]     | package:pub/src/http.dart 66:43                               _PubHttpClient.send
[        ]     | package:http_retry/http_retry.dart 97:33                      RetryClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async/zone.dart 1109:19                                  _CustomZone.registerUnaryCallback
[        ]     | dart:async-patch/async_patch.dart 79:23                       _asyncThenWrapperHelper
[        ]     | package:pub/src/http.dart 165:39                              _ThrowingClient.send
[        ]     | package:http_throttle/http_throttle.dart 33:31                ThrottleClient.send
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async/zone.dart 1109:19                                  _CustomZone.registerUnaryCallback
[        ]     | dart:async-patch/async_patch.dart 79:23                       _asyncThenWrapperHelper
[        ]     | package:http/src/base_client.dart 169:38                      BaseClient._sendUnstreamed
[        ]     | package:http/src/base_client.dart 32:7                        BaseClient.get
[        ]     | package:http/src/base_client.dart 117:12                      BaseClient.read
[        ]     | package:pub/src/source/hosted.dart 185:31                     BoundHostedSource._fetchVersions
[        ]     | dart:async/zone.dart 1192:38                                  _rootRunUnary
[        ]     | dart:async/zone.dart 1085:19                                  _CustomZone.runUnary
[        ]     | package:pub/src/rate_limited_scheduler.dart 82:30             RateLimitedScheduler._processNextTask.runJob
[        ]     | package:pub/src/rate_limited_scheduler.dart 85:30             RateLimitedScheduler._processNextTask
[        ]     | dart:async/future.dart 224:31                                 new Future.sync
[        ]     | package:pool/pool.dart 126:18                                 Pool.withResource.<fn>
[   +1 ms]     | package:stack_trace/src/stack_zone_specification.dart 129:26  StackZoneSpecification._registerUnaryCallback.<fn>.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 129:14  StackZoneSpecification._registerUnaryCallback.<fn>
[        ]     | dart:async/zone.dart 1192:38                                  _rootRunUnary
[        ]     | dart:async/zone.dart 1085:19                                  _CustomZone.runUnary
[        ]     | dart:async/future_impl.dart 141:18                            _FutureListener.handleValue
[        ]     | dart:async/future_impl.dart 682:45                            Future._propagateToListeners.handleValueCallback
[   +7 ms]     | dart:async/future_impl.dart 711:32                            Future._propagateToListeners
[        ]     | dart:async/future_impl.dart 526:5                             Future._completeWithValue
[        ]     | dart:async/future_impl.dart 556:7                             Future._asyncComplete.<fn>
[   +1 ms]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 119:48  StackZoneSpecification._registerCallback.<fn>
[        ]     | dart:async/zone.dart 1184:13                                  _rootRun
[        ]     | dart:async/zone.dart 1077:19                                  _CustomZone.run
[        ]     | dart:async/zone.dart 979:7                                    _CustomZone.runGuarded
[   +4 ms]     | dart:async/zone.dart 1019:23                                  _CustomZone.bindCallbackGuarded.<fn>
[        ]     | dart:async/schedule_microtask.dart 43:21                      _microtaskLoop
[        ]     | dart:async/schedule_microtask.dart 52:5                       _startMicrotaskLoop
[        ]     | dart:isolate-patch/isolate_patch.dart 118:13                  _runPendingImmediateCallback
[        ]     | dart:isolate-patch/isolate_patch.dart 169:5                   _RawReceivePortImpl._handleMessage
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async/zone.dart 1109:19                                  _CustomZone.registerUnaryCallback
[        ]     | dart:async/future_impl.dart 278:23                            Future.then
[        ]     | package:pool/pool.dart 125:22                                 Pool.withResource
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:37            RateLimitedScheduler.schedule.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 119:48  StackZoneSpecification._registerCallback.<fn>
[        ]     | dart:async/zone.dart 1180:38                                  _rootRun
[        ]     | dart:async/zone.dart 1077:19                                  _CustomZone.run
[        ]     | dart:async/zone.dart 979:7                                    _CustomZone.runGuarded
[        ]     | dart:async/zone.dart 1019:23                                  _CustomZone.bindCallbackGuarded.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 119:48  StackZoneSpecification._registerCallback.<fn>
[        ]     | dart:async/zone.dart 1184:13                                  _rootRun
[        ]     | dart:async/zone.dart 1077:19                                  _CustomZone.run
[        ]     | dart:async/zone.dart 979:7                                    _CustomZone.runGuarded
[        ]     | dart:async/zone.dart 1019:23                                  _CustomZone.bindCallbackGuarded.<fn>
[        ]     | dart:async/schedule_microtask.dart 43:21                      _microtaskLoop
[        ]     | dart:async/schedule_microtask.dart 52:5                       _startMicrotaskLoop
[        ]     | dart:isolate-patch/isolate_patch.dart 118:13                  _runPendingImmediateCallback
[   +2 ms]     | dart:isolate-patch/isolate_patch.dart 169:5                   _RawReceivePortImpl._handleMessage
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async/zone.dart 1101:19                                  _CustomZone.registerCallback
[        ]     | dart:async/zone.dart 1018:22                                  _CustomZone.bindCallbackGuarded
[        ]     | dart:async/schedule_microtask.dart 149:47                     scheduleMicrotask
[        ]     | package:pub/src/rate_limited_scheduler.dart 129:7             RateLimitedScheduler.schedule
[        ]     | package:pub/src/source/hosted.dart 231:39                     BoundHostedSource.doGetVersions
[        ]     | package:pub/src/source.dart 168:12                            BoundSource.getVersions
[        ]     | package:pub/src/solver/package_lister.dart 76:44              PackageLister._versions.<fn>.<fn>
[        ]     | dart:async/zone.dart 1184:13                                  _rootRun
[        ]     | dart:async/zone.dart 1077:19                                  _CustomZone.run
[        ]     | dart:async/zone.dart 1619:10                                  _runZoned
[        ]     | dart:async/zone.dart 1539:10                                  runZoned
[        ]     | package:pub/src/http.dart 279:10                              withDependencyType
[        ]     | package:pub/src/solver/package_lister.dart 75:33              PackageLister._versions.<fn>
[        ]     | dart:async/future.dart 224:31                                 new Future.sync
[        ]     | package:async/src/async_memoizer.dart 43:45                   AsyncMemoizer.runOnce
[        ]     | package:pub/src/solver/package_lister.dart 74:58              PackageLister._versions
[        ]     | package:pub/src/solver/package_lister.dart 111:21             PackageLister.countVersions
[        ]     | package:pub/src/solver/version_solver.dart 356:44             VersionSolver._choosePackageVersion.<fn>
[        ]     | dart:_internal/iterable.dart 417:31                           MappedListIterable.elementAt
[        ]     | dart:_internal/iterable.dart 346:26                           ListIterator.moveNext
[        ]     | dart:async/future.dart 395:26                                 Future.wait
[        ]     | package:pub/src/utils.dart 295:39                             minByAsync
[        ]     | package:pub/src/solver/version_solver.dart 352:25             VersionSolver._choosePackageVersion
[        ]     | package:pub/src/solver/version_solver.dart 98:24              VersionSolver.solve.<fn>
[   +1 ms]     | package:stack_trace/src/stack_zone_specification.dart 129:26  StackZoneSpecification._registerUnaryCallback.<fn>.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 129:14  StackZoneSpecification._registerUnaryCallback.<fn>
[        ]     | dart:async/zone.dart 1192:38                                  _rootRunUnary
[        ]     | dart:async/zone.dart 1085:19                                  _CustomZone.runUnary
[        ]     | dart:async/future_impl.dart 141:18                            _FutureListener.handleValue
[        ]     | dart:async/future_impl.dart 682:45                            Future._propagateToListeners.handleValueCallback
[   +2 ms]     | dart:async/future_impl.dart 711:32                            Future._propagateToListeners
[        ]     | dart:async/future_impl.dart 526:5                             Future._completeWithValue
[        ]     | dart:async-patch/async_patch.dart 36:15                       _AsyncAwaitCompleter.complete
[        ]     | dart:async-patch/async_patch.dart 298:13                      _completeOnAsyncReturn
[        ]     | package:pub/src/solver/version_solver.dart                    VersionSolver._choosePackageVersion
[        ]     | package:stack_trace/src/stack_zone_specification.dart 129:26  StackZoneSpecification._registerUnaryCallback.<fn>.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 129:14  StackZoneSpecification._registerUnaryCallback.<fn>
[   +1 ms]     | dart:async/zone.dart 1192:38                                  _rootRunUnary
[        ]     | dart:async/zone.dart 1085:19                                  _CustomZone.runUnary
[        ]     | dart:async/future_impl.dart 141:18                            _FutureListener.handleValue
[        ]     | dart:async/future_impl.dart 682:45                            Future._propagateToListeners.handleValueCallback
[        ]     | dart:async/future_impl.dart 711:32                            Future._propagateToListeners
[        ]     | dart:async/future_impl.dart 526:5                             Future._completeWithValue
[        ]     | dart:async-patch/async_patch.dart 36:15                       _AsyncAwaitCompleter.complete
[        ]     | dart:async-patch/async_patch.dart 298:13                      _completeOnAsyncReturn
[   +1 ms]     | package:pub/src/solver/package_lister.dart                    PackageLister.incompatibilitiesFor
[        ]     | package:stack_trace/src/stack_zone_specification.dart 129:26  StackZoneSpecification._registerUnaryCallback.<fn>.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 129:14  StackZoneSpecification._registerUnaryCallback.<fn>
[        ]     | dart:async/zone.dart 1192:38                                  _rootRunUnary
[        ]     | dart:async/zone.dart 1085:19                                  _CustomZone.runUnary
[        ]     | dart:async/future_impl.dart 141:18                            _FutureListener.handleValue
[        ]     | dart:async/future_impl.dart 682:45                            Future._propagateToListeners.handleValueCallback
[        ]     | dart:async/future_impl.dart 711:32                            Future._propagateToListeners
[        ]     | dart:async/future_impl.dart 526:5                             Future._completeWithValue
[        ]     | dart:async/future_impl.dart 556:7                             Future._asyncComplete.<fn>
[        ]     | package:stack_trace/src/stack_zone_specification.dart 209:15  StackZoneSpecification._run
[        ]     | package:stack_trace/src/stack_zone_specification.dart 119:48  StackZoneSpecification._registerCallback.<fn>
[  +10 ms]     | dart:async/zone.dart 1184:13                                  _rootRun
[        ]     | dart:async/zone.dart 1077:19                                  _CustomZone.run
[        ]     | dart:async/zone.dart 979:7                                    _CustomZone.runGuarded
[        ]     | dart:async/zone.dart 1019:23                                  _CustomZone.bindCallbackGuarded.<fn>
[        ]     | dart:async/schedule_microtask.dart 43:21                      _microtaskLoop
[        ]     | dart:async/schedule_microtask.dart 52:5                       _startMicrotaskLoop
[        ]     | dart:isolate-patch/isolate_patch.dart 118:13                  _runPendingImmediateCallback
[        ]     | dart:isolate-patch/isolate_patch.dart 169:5                   _RawReceivePortImpl._handleMessage
[        ]     | ===== asynchronous gap ===========================
[        ]     | dart:async/zone.dart 1109:19                                  _CustomZone.registerUnaryCallback
[        ]     | dart:async-patch/async_patch.dart 79:23                       _asyncThenWrapperHelper
[        ]     | package:pub/src/solver/version_solver.dart                    VersionSolver.solve.<fn>
[        ]     | dart:async/zone.dart 1184:13                                  _rootRun
[        ]     | dart:async/zone.dart 1077:19                                  _CustomZone.run
[        ]     | dart:async/zone.dart 1619:10                                  _runZoned
[        ]     | dart:async/zone.dart 1539:10                                  runZoned
[        ]     | package:pub/src/source/hosted.dart 502:20                     BoundHostedSource.withPrefetching.<fn>
[        ]     | package:pub/src/rate_limited_scheduler.dart 105:28            RateLimitedScheduler.withPrescheduling
[        ]     | package:pub/src/source/hosted.dart 501:29                     BoundHostedSource.withPrefetching
[        ]     | package:pub/src/solver/version_solver.dart 94:40              VersionSolver.solve
[        ]     | package:pub/src/solver.dart 37:5                              resolveVersions
[        ]     | package:pub/src/entrypoint.dart 218:13                        Entrypoint.acquireDependencies.<fn>
[        ]     | package:pub/src/log.dart 394:18                               progress
[        ]     | package:pub/src/entrypoint.dart 216:24                        Entrypoint.acquireDependencies
[        ]     | package:pub/src/command/get.dart 46:23                        GetCommand.run
[        ]     | package:args/command_runner.dart 197:27                       CommandRunner.runCommand
[        ]     | package:pub/src/command_runner.dart 191:39                    PubCommandRunner.runCommand.<fn>
[        ]     | dart:async/future.dart 224:31                                 new Future.sync
[        ]     | package:pub/src/utils.dart 113:12                             captureErrors.wrappedCallback
[        ]     | package:stack_trace/src/chain.dart 101:24                     Chain.capture.<fn>
[        ]     | dart:async/zone.dart 1184:13                                  _rootRun
[        ]     | dart:async/zone.dart 1077:19                                  _CustomZone.run
[        ]     | dart:async/zone.dart 1619:10                                  _runZoned
[        ]     | dart:async/zone.dart 1539:10                                  runZoned
[   +4 ms]     | package:stack_trace/src/chain.dart 99:12                      Chain.capture
[        ]     | package:pub/src/utils.dart 126:11                             captureErrors
[        ]     | package:pub/src/command_runner.dart 191:13                    PubCommandRunner.runCommand
[   +3 ms] pub get failed (server unavailable) -- attempting retry 1 in 1 second...

Note that, when I restart my Mac, it works completely fine, though almost every time I need to run pub get, I have to restart it... After the above log, it reattempted to get the packages.

It ran the same thing again, and as far as I can see, this seems to be the main underlying issue. My internet connection is working perfectly, and im sure about that! Thanks a lot!

[+29985 ms] IO  : Retry #4 for GET https://pub.dartlang.org/api/packages/sqflite...
[        ] MSG : It looks like pub.dartlang.org is having some trouble.
[        ]     | Pub will wait for a while before trying to connect again.
[        ] IO  : HTTP GET https://pub.dartlang.org/api/packages/sqflite

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@lewisstevens1 @tahmid56 @suptejas