Trouble Installing fortls Via Modern Fortran Extension in VS Code

[nickbrady]

After installing the Modern Fortran Extension and installing fortls when prompted by the extension, I encounter the following output. How can I resolve this?

["INFO" - 1:08:16 PM] Extension Name: Modern Fortran
["INFO" - 1:08:16 PM] Extension Version: 3.2.0
["INFO" - 1:08:16 PM] Linter set to: gfortran
["INFO" - 1:08:16 PM] Formatter set to: findent
["INFO" - 1:08:16 PM] Autocomplete set to: fortls
["INFO" - 1:08:16 PM] Hover set to: fortls
["INFO" - 1:08:16 PM] Symbols set to: fortls
["INFO" - 1:08:16 PM] Fortran Language Server
["INFO" - 1:08:16 PM] Initialising Language Server for file: /Users/Me/Downloads/sub_MATINV.f95 with command-line options: --enable_code_actions, --hover_signature, --use_signature_help, --lowercase_intrinsics, --nthreads=4, --incremental_sync
error handling request {'jsonrpc': '2.0', 'id': 0, 'method': 'initialize', 'params': {'processId': 24057, 'clientInfo': {'name': 'Visual Studio Code', 'version': '1.83.1'}, 'locale': 'en-us', 'rootPath': None, 'rootUri': None, 'capabilities': {'workspace': {'applyEdit': True, 'workspaceEdit': {'documentChanges': True, 'resourceOperations': ['create', 'rename', 'delete'], 'failureHandling': 'textOnlyTransactional', 'normalizesLineEndings': True, 'changeAnnotationSupport': {'groupsOnLabel': True}}, 'configuration': True, 'didChangeWatchedFiles': {'dynamicRegistration': True, 'relativePatternSupport': True}, 'symbol': {'dynamicRegistration': True, 'symbolKind': {'valueSet': [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26]}, 'tagSupport': {'valueSet': [1]}, 'resolveSupport': {'properties': ['location.range']}}, 'codeLens': {'refreshSupport': True}, 'executeCommand': {'dynamicRegistration': True}, 'didChangeConfiguration': {'dynamicRegistration': True}, 'workspaceFolders': True, 'semanticTokens': {'refreshSupport': True}, 'fileOperations': {'dynamicRegistration': True, 'didCreate': True, 'didRename': True, 'didDelete': True, 'willCreate': True, 'willRename': True, 'willDelete': True}, 'inlineValue': {'refreshSupport': True}, 'inlayHint': {'refreshSupport': True}, 'diagnostics': {'refreshSupport': True}}, 'textDocument': {'publishDiagnostics': {'relatedInformation': True, 'versionSupport': False, 'tagSupport': {'valueSet': [1, 2]}, 'codeDescriptionSupport': True, 'dataSupport': True}, 'synchronization': {'dynamicRegistration': True, 'willSave': True, 'willSaveWaitUntil': True, 'didSave': True}, 'completion': {'dynamicRegistration': True, 'contextSupport': True, 'completionItem': {'snippetSupport': True, 'commitCharactersSupport': True, 'documentationFormat': ['markdown', 'plaintext'], 'deprecatedSupport': True, 'preselectSupport': True, 'tagSupport': {'valueSet': [1]}, 'insertReplaceSupport': True, 'resolveSupport': {'properties': ['documentation', 'detail', 'additionalTextEdits']}, 'insertTextModeSupport': {'valueSet': [1, 2]}, 'labelDetailsSupport': True}, 'insertTextMode': 2, 'completionItemKind': {'valueSet': [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25]}, 'completionList': {'itemDefaults': ['commitCharacters', 'editRange', 'insertTextFormat', 'insertTextMode']}}, 'hover': {'dynamicRegistration': True, 'contentFormat': ['markdown', 'plaintext']}, 'signatureHelp': {'dynamicRegistration': True, 'signatureInformation': {'documentationFormat': ['markdown', 'plaintext'], 'parameterInformation': {'labelOffsetSupport': True}, 'activeParameterSupport': True}, 'contextSupport': True}, 'definition': {'dynamicRegistration': True, 'linkSupport': True}, 'references': {'dynamicRegistration': True}, 'documentHighlight': {'dynamicRegistration': True}, 'documentSymbol': {'dynamicRegistration': True, 'symbolKind': {'valueSet': [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26]}, 'hierarchicalDocumentSymbolSupport': True, 'tagSupport': {'valueSet': [1]}, 'labelSupport': True}, 'codeAction': {'dynamicRegistration': True, 'isPreferredSupport': True, 'disabledSupport': True, 'dataSupport': True, 'resolveSupport': {'properties': ['edit']}, 'codeActionLiteralSupport': {'codeActionKind': {'valueSet': ['', 'quickfix', 'refactor', 'refactor.extract', 'refactor.inline', 'refactor.rewrite', 'source', 'source.organizeImports']}}, 'honorsChangeAnnotations': False}, 'codeLens': {'dynamicRegistration': True}, 'formatting': {'dynamicRegistration': True}, 'rangeFormatting': {'dynamicRegistration': True}, 'onTypeFormatting': {'dynamicRegistration': True}, 'rename': {'dynamicRegistration': True, 'prepareSupport': True, 'prepareSupportDefaultBehavior': 1, 'honorsChangeAnnotations': True}, 'documentLink': {'dynamicRegistration': True, 'tooltipSupport': True}, 'typeDefinition': {'dynamicRegistration': True, 'linkSupport': True}, 'implementation': {'dynamicRegistration': True, 'linkSupport': True}, 'colorProvider': {'dynamicRegistration': True}, 'foldingRange': {'dynamicRegistration': True, 'rangeLimit': 5000, 'lineFoldingOnly': True, 'foldingRangeKind': {'valueSet': ['comment', 'imports', 'region']}, 'foldingRange': {'collapsedText': False}}, 'declaration': {'dynamicRegistration': True, 'linkSupport': True}, 'selectionRange': {'dynamicRegistration': True}, 'callHierarchy': {'dynamicRegistration': True}, 'semanticTokens': {'dynamicRegistration': True, 'tokenTypes': ['namespace', 'type', 'class', 'enum', 'interface', 'struct', 'typeParameter', 'parameter', 'variable', 'property', 'enumMember', 'event', 'function', 'method', 'macro', 'keyword', 'modifier', 'comment', 'string', 'number', 'regexp', 'operator', 'decorator'], 'tokenModifiers': ['declaration', 'definition', 'readonly', 'static', 'deprecated', 'abstract', 'async', 'modification', 'documentation', 'defaultLibrary'], 'formats': ['relative'], 'requests': {'range': True, 'full': {'delta': True}}, 'multilineTokenSupport': False, 'overlappingTokenSupport': False, 'serverCancelSupport': True, 'augmentsSyntaxTokens': True}, 'linkedEditingRange': {'dynamicRegistration': True}, 'typeHierarchy': {'dynamicRegistration': True}, 'inlineValue': {'dynamicRegistration': True}, 'inlayHint': {'dynamicRegistration': True, 'resolveSupport': {'properties': ['tooltip', 'textEdits', 'label.tooltip', 'label.location', 'label.command']}}, 'diagnostic': {'dynamicRegistration': True, 'relatedDocumentSupport': False}}, 'window': {'showMessage': {'messageActionItem': {'additionalPropertiesSupport': True}}, 'showDocument': {'support': True}, 'workDoneProgress': True}, 'general': {'staleRequestSupport': {'cancel': True, 'retryOnContentModified': ['textDocument/semanticTokens/full', 'textDocument/semanticTokens/range', 'textDocument/semanticTokens/full/delta']}, 'regularExpressions': {'engine': 'ECMAScript', 'version': 'ES2020'}, 'markdown': {'parser': 'marked', 'version': '1.1.0'}, 'positionEncodings': ['utf-16']}, 'notebookDocument': {'synchronization': {'dynamicRegistration': True, 'executionSummarySupport': True}}}, 'trace': 'off', 'workspaceFolders': None}}
Traceback (most recent call last):
  File "/Users/Me/Library/Python/3.9/lib/python/site-packages/fortls/langserver.py", line 167, in handle
    resp = handler(request)
  File "/Users/Me/Library/Python/3.9/lib/python/site-packages/fortls/langserver.py", line 195, in serve_initialize
    self._resolve_globs_in_paths()
  File "/Users/Me/Library/Python/3.9/lib/python/site-packages/fortls/langserver.py", line 1620, in _resolve_globs_in_paths
    source_dirs.update(set(only_dirs(resolve_globs(path, self.root_path))))
  File "/Users/Me/Library/Python/3.9/lib/python/site-packages/fortls/helper_functions.py", line 337, in resolve_globs
    return [str(p.resolve()) for p in Path(root).glob(rel)]
  File "/Users/Me/Library/Python/3.9/lib/python/site-packages/fortls/helper_functions.py", line 337, in <listcomp>
    return [str(p.resolve()) for p in Path(root).glob(rel)]
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/pathlib.py", line 1166, in glob
    selector = _make_selector(tuple(pattern_parts), self._flavour)
  File "/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/pathlib.py", line 477, in _make_selector
    pat = pattern_parts[0]
IndexError: tuple index out of range
[Error - 1:08:16 PM] Server initialization failed.
  Message: tuple index out of range
  Code: -32603 
[object Object]
[Error - 1:08:16 PM] Fortran Language Server client: couldn't create connection to server.
  Message: tuple index out of range
  Code: -32603 
[object Object]

[nickbrady]

duplicate of this: fortran-lang/vscode-fortran-support#567

[gnikit]

Hi @nickbrady does that mean you were able to resolve your issues?

[nickbrady]

Yes, I switched to the pre-release version and it seems to be functioning properly.