RangeError (index): Invalid value: Valid value range is empty: 0 #4
Description
works on an ANDROID phone.
But crashes when I try to use Camera on iPHONE X.
in main.dart file:
cameras = await availableCameras();
When I print the cameras.length that result 0.
I hope someone can help me.
flutter: ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
flutter: The following RangeError was thrown building NotificationListener:
flutter: RangeError (index): Invalid value: Valid value range is empty: 0
flutter:
flutter: When the exception was thrown, this was the stack:
flutter: #0 List.[] (dart:core/runtime/libgrowable_array.dart:141:60)
flutter: #1 CameraScreenState.initState (package:flutter_what_app/pages/camera_screen.dart:23:44)
flutter: #2 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3743:58)
flutter: #3 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3609:5)
flutter: #4 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2899:14)
flutter: #5 Element.updateChild (package:flutter/src/widgets/framework.dart:2702:12)
flutter: #6 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4646:14)
flutter: #7 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2899:14)
flutter: #8 Element.updateChild (package:flutter/src/widgets/framework.dart:2702:12)
flutter: #9 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3645:16)
flutter: #10 Element.rebuild (package:flutter/src/widgets/framework.dart:3487:5)
flutter: #11 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3614:5)
flutter: #12 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3609:5)
flutter: #13 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2899:14)
flutter: #14 Element.updateChild (package:flutter/src/widgets/framework.dart:2702:12)
flutter: #15 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3645:16)
flutter: #16 Element.rebuild (package:flutter/src/widgets/framework.dart:3487:5)
flutter: #17 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3614:5)
flutter: #18 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3609:5)
flutter: #19 ParentDataElement.mount (package:flutter/src/widgets/framework.dart:3947:11)
flutter: #20 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2899:14)
flutter: #21 Element.updateChild (package:flutter/src/widgets/framework.dart:2702:12)
flutter: #22 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3645:16)
flutter: #23 Element.rebuild (package:flutter/src/widgets/framework.dart:3487:5)
flutter: #24 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3614:5)
flutter: #25 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3761:11)
flutter: #26 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3609:5)
flutter: #27 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2899:14)
flutter: #28 Element.updateChild (package:flutter/src/widgets/framework.dart:2702:12)
flutter: #29 SliverMultiBoxAdaptorElement.updateChild (package:flutter/src/widgets/sliver.dart:744:36)
flutter: #30 SliverMultiBoxAdaptorElement.createChild. (package:flutter/src/widgets/sliver.dart:729:20)
flutter: #31 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2214:19)
flutter: #32 SliverMultiBoxAdaptorElement.createChild (package:flutter/src/widgets/sliver.dart:722:11)
flutter: #33 RenderSliverMultiBoxAdaptor._createOrObtainChild. (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:254:23)
flutter: #34 RenderObject.invokeLayoutCallback. (package:flutter/src/rendering/object.dart:1666:58)
flutter: #35 PipelineOwner._enableMutationsToDirtySubtrees (package:flutter/src/rendering/object.dart:740:15)
flutter: #36 RenderObject.invokeLayoutCallback (package:flutter/src/rendering/object.dart:1666:13)
flutter: #37 RenderSliverMultiBoxAdaptor._createOrObtainChild (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:243:5)
flutter: #38 RenderSliverMultiBoxAdaptor.insertAndLayoutLeadingChild (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:382:5)
flutter: #39 RenderSliverFixedExtentBoxAdaptor.performLayout (package:flutter/src/rendering/sliver_fixed_extent_list.dart:184:31)
flutter: #40 RenderObject.layout (package:flutter/src/rendering/object.dart:1570:7)
flutter: #41 RenderViewportBase.layoutChildSequence (package:flutter/src/rendering/viewport.dart:285:13)
flutter: #42 RenderViewport._attemptLayout (package:flutter/src/rendering/viewport.dart:1008:12)
flutter: #43 RenderViewport.performLayout (package:flutter/src/rendering/viewport.dart:932:20)
flutter: #44 RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:1445:7)
flutter: #45 PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:709:18)
flutter: #46 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:270:19)
flutter: #47 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&RendererBinding&WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:627:13)
flutter: #48 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:208:5)
flutter: #49 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:990:15)
flutter: #50 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:930:9)
flutter: #51 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:842:5)
flutter: #52 _invoke (dart:ui/hooks.dart:120:13)
flutter: #53 _drawFrame (dart:ui/hooks.dart:109:3)
flutter: ════════════════════════════════════════════════════════════════════════════════════════════════════
flutter: Another exception was thrown: 'package:flutter/src/rendering/sliver_multi_box_adaptor.dart': Failed assertion: line 215 pos 16: 'indexOf(child) > index': is not true.
flutter: Another exception was thrown: 'package:flutter/src/rendering/sliver_multi_box_adaptor.dart': Failed assertion: line 215 pos 16: 'indexOf(child) > index': is not true.
flutter: Another exception was thrown: 'package:flutter/src/widgets/framework.dart': Failed assertion: line 2218 pos 20: '_debugCurrentBuildTarget == context': is not true.
flutter: Another exception was thrown: RenderBox was not laid out: RenderRepaintBoundary#9b6a0 NEEDS-LAYOUT NEEDS-PAINT
flutter: Another exception was thrown: RenderBox was not laid out: RenderErrorBox#cbb6d NEEDS-LAYOUT NEEDS-PAINT