Request textDocument/diagnostic failed. Message: The solution does not contain the specified document.

[glen-84]

Type: Bug

Issue Description

Request textDocument/diagnostic failed. Message: The solution does not contain the specified document. Code: -32000 [object Object]

This is driving me crazy.

Steps to Reproduce

Not sure yet. I'm working with the GraphQL Platform repository. I'll update this issue if I can find simple steps to reproduce the error.

Expected Behavior

No errors.

Actual Behavior

The above error keeps showing up, multiple times, when opening and closing certain files, and I think also while staging files, etc.

Logs

C# log

2025-07-13 12:20:02.842 [info] [Error - 12:20:02 PM] [workspace/diagnostic] [LSP] System.InvalidOperationException: The solution does not contain the specified document.
   at Microsoft.CodeAnalysis.Workspaces.Diagnostics.DiagnosticAnalysisResultBuilder.AddDiagnostic(Dictionary`2& lazyLocals, SyntaxTree tree, Diagnostic diagnostic) in /_/src/Workspaces/Core/Portable/Diagnostics/DiagnosticAnalysisResultBuilder.cs:line 157
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.<ToResultBuilderMapAsync>g__AddDiagnosticsToResult|8_1(ImmutableArray`1 diagnostics, DiagnosticAnalysisResultBuilder& result, SyntaxTree tree, DocumentId additionalDocumentId, Nullable`1 span, AnalysisKind kind, ImmutableArray`1 diagnosticIdsToFilter) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 291
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.ToResultBuilderMapAsync(AnalysisResultPair analysisResult, ImmutableArray`1 additionalPragmaSuppressionDiagnostics, DocumentAnalysisScope documentAnalysisScope, Project project, ImmutableArray`1 projectAnalyzers, ImmutableArray`1 hostAnalyzers, SkippedHostAnalyzersInfo skippedAnalyzersInfo, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeInProcAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, RemoteHostClient client, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 107
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.<>c__DisplayClass7_0.<<AnalyzeAsync>g__AnalyzeCoreAsync|0>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 75
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 60
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass15_0.<<ComputeDiagnosticAnalysisResultsAsync>g__ComputeDiagnosticsForAnalyzersAsync|1>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer.Executor.cs:line 100
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDiagnosticAnalysisResultsAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, Project project, ImmutableArray`1 analyzers, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer.Executor.cs:line 38
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass20_0.<<ProduceProjectDiagnosticsAsync>g__GetOrComputeDiagnosticAnalysisResultsAsync|3>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnostics.cs:line 133
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ProduceProjectDiagnosticsAsync(Project project, ImmutableHashSet`1 diagnosticIds, Func`2 shouldIncludeAnalyzer, IReadOnlyList`1 documentIds, Boolean includeLocalDocumentDiagnostics, Boolean includeNonLocalDocumentDiagnostics, Boolean includeProjectNonLocalResult, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnostics.cs:line 70
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractWorkspaceDocumentDiagnosticSource.FullSolutionAnalysisDiagnosticSource.<GetProjectDiagnosticsAsync>b__5_2(CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticSources/AbstractWorkspaceDocumentDiagnosticSource.cs:line 80
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractWorkspaceDocumentDiagnosticSource.FullSolutionAnalysisDiagnosticSource.GetProjectDiagnosticsAsync(CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticSources/AbstractWorkspaceDocumentDiagnosticSource.cs:line 69
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractWorkspaceDocumentDiagnosticSource.FullSolutionAnalysisDiagnosticSource.GetDiagnosticsAsync(RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticSources/AbstractWorkspaceDocumentDiagnosticSource.cs:line 56
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.DiagnosticsPullCache.ComputeDataAsync(DiagnosticsRequestState state, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticsPullCache.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.CacheItem.UpdateCacheItemAsync(VersionedPullCache`4 cache, Nullable`1 previousPullResult, Boolean isFullyLoaded, TState state, String language, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.GetOrComputeNewDataAsync(Dictionary`2 idToClientLastResult, ProjectOrDocumentId projectOrDocumentId, Project project, TState state, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.HandleRequestAsync(TDiagnosticsParams diagnosticsParams, RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/AbstractPullDiagnosticHandler.cs:line 159
   at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, String language, CancellationToken cancellationToken)
2025-07-13 12:20:02.843 [info] [Error - 12:20:02 PM] Request textDocument/diagnostic failed.
2025-07-13 12:20:02.843 [info]   Message: The solution does not contain the specified document.
  Code: -32000 
[object Object]
2025-07-13 12:20:02.844 [info] [Error - 12:20:02 PM] Workspace diagnostic pull failed.
2025-07-13 12:20:02.844 [info]   Message: The solution does not contain the specified document.
  Code: -32000 
[object Object]
2025-07-13 12:20:10.083 [info] [Error - 12:20:10 PM] [workspace/diagnostic] [LSP] System.ArgumentException: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.VerifyTree(SyntaxTree tree) in /_/src/Compilers/Core/Portable/DiagnosticAnalyzer/CompilationWithAnalyzers.cs:line 208
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzersPair.GetAnalysisResultAsync(SyntaxTree tree, Nullable`1 filterSpan, ImmutableArray`1 projectAnalyzers, ImmutableArray`1 hostAnalyzers, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/CompilationWithAnalyzersPair.cs:line 80
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 352
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, Project project, DiagnosticAnalyzerInfoCache analyzerInfoCache, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 327
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeInProcAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, RemoteHostClient client, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 89
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.<>c__DisplayClass7_0.<<AnalyzeAsync>g__AnalyzeCoreAsync|0>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 75
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 60
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.GetAnalysisResultAsync(DocumentAnalysisScope analysisScope, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 158
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.GetSyntaxDiagnosticsAsync(DiagnosticAnalyzer analyzer, Boolean isCompilerAnalyzer, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 214
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.ComputeDiagnosticsAsync(DiagnosticAnalyzer analyzer, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 121
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDocumentDiagnosticsForAnalyzerCoreAsync(DiagnosticAnalyzer analyzer, DocumentAnalysisExecutor executor, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 47
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDocumentDiagnosticsCoreAsync(DocumentAnalysisExecutor executor, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 33
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass23_0.<<GetDiagnosticsForSpanAsync>g__ComputeDocumentDiagnosticsAsync|3>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 250
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass23_0.<<GetDiagnosticsForSpanAsync>g__GetAsync|1>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 155
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, Func`2 shouldIncludeDiagnostic, ICodeActionRequestPriorityProvider priorityProvider, DiagnosticKind diagnosticKind, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 86
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, Func`2 shouldIncludeDiagnostic, ICodeActionRequestPriorityProvider priorityProvider, DiagnosticKind diagnosticKinds, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DiagnosticAnalyzerService.cs:line 113
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractWorkspaceDocumentDiagnosticSource.FullSolutionAnalysisDiagnosticSource.GetDiagnosticsAsync(RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticSources/AbstractWorkspaceDocumentDiagnosticSource.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.DiagnosticsPullCache.ComputeDataAsync(DiagnosticsRequestState state, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticsPullCache.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.CacheItem.UpdateCacheItemAsync(VersionedPullCache`4 cache, Nullable`1 previousPullResult, Boolean isFullyLoaded, TState state, String language, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.GetOrComputeNewDataAsync(Dictionary`2 idToClientLastResult, ProjectOrDocumentId projectOrDocumentId, Project project, TState state, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.HandleRequestAsync(TDiagnosticsParams diagnosticsParams, RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/AbstractPullDiagnosticHandler.cs:line 159
   at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, String language, CancellationToken cancellationToken)
2025-07-13 12:20:10.083 [info] [Error - 12:20:10 PM] Request textDocument/diagnostic failed.
2025-07-13 12:20:10.083 [info]   Message: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
  Code: -32000 
[object Object]
2025-07-13 12:20:10.083 [info] [Error - 12:20:10 PM] Workspace diagnostic pull failed.
2025-07-13 12:20:10.083 [info]   Message: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
  Code: -32000 
[object Object]
2025-07-13 12:20:13.369 [info] [Error - 12:20:13 PM] [workspace/diagnostic] [LSP] System.ArgumentException: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.VerifyTree(SyntaxTree tree) in /_/src/Compilers/Core/Portable/DiagnosticAnalyzer/CompilationWithAnalyzers.cs:line 208
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzersPair.GetAnalysisResultAsync(SyntaxTree tree, Nullable`1 filterSpan, ImmutableArray`1 projectAnalyzers, ImmutableArray`1 hostAnalyzers, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/CompilationWithAnalyzersPair.cs:line 80
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 352
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, Project project, DiagnosticAnalyzerInfoCache analyzerInfoCache, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 327
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeInProcAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, RemoteHostClient client, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 89
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.<>c__DisplayClass7_0.<<AnalyzeAsync>g__AnalyzeCoreAsync|0>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 75
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 60
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.GetAnalysisResultAsync(DocumentAnalysisScope analysisScope, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 158
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.GetSyntaxDiagnosticsAsync(DiagnosticAnalyzer analyzer, Boolean isCompilerAnalyzer, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 214
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.ComputeDiagnosticsAsync(DiagnosticAnalyzer analyzer, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 121
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDocumentDiagnosticsForAnalyzerCoreAsync(DiagnosticAnalyzer analyzer, DocumentAnalysisExecutor executor, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 47
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDocumentDiagnosticsCoreAsync(DocumentAnalysisExecutor executor, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 33
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass23_0.<<GetDiagnosticsForSpanAsync>g__ComputeDocumentDiagnosticsAsync|3>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 250
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass23_0.<<GetDiagnosticsForSpanAsync>g__GetAsync|1>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 155
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, Func`2 shouldIncludeDiagnostic, ICodeActionRequestPriorityProvider priorityProvider, DiagnosticKind diagnosticKind, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 86
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, Func`2 shouldIncludeDiagnostic, ICodeActionRequestPriorityProvider priorityProvider, DiagnosticKind diagnosticKinds, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DiagnosticAnalyzerService.cs:line 113
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractWorkspaceDocumentDiagnosticSource.FullSolutionAnalysisDiagnosticSource.GetDiagnosticsAsync(RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticSources/AbstractWorkspaceDocumentDiagnosticSource.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.DiagnosticsPullCache.ComputeDataAsync(DiagnosticsRequestState state, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticsPullCache.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.CacheItem.UpdateCacheItemAsync(VersionedPullCache`4 cache, Nullable`1 previousPullResult, Boolean isFullyLoaded, TState state, String language, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.GetOrComputeNewDataAsync(Dictionary`2 idToClientLastResult, ProjectOrDocumentId projectOrDocumentId, Project project, TState state, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.HandleRequestAsync(TDiagnosticsParams diagnosticsParams, RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/AbstractPullDiagnosticHandler.cs:line 159
   at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, String language, CancellationToken cancellationToken)
2025-07-13 12:20:13.370 [info] [Error - 12:20:13 PM] Request textDocument/diagnostic failed.
2025-07-13 12:20:13.370 [info]   Message: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
  Code: -32000 
[object Object]
2025-07-13 12:20:13.370 [info] [Error - 12:20:13 PM] Workspace diagnostic pull failed.
2025-07-13 12:20:13.370 [info]   Message: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
  Code: -32000 
[object Object]
2025-07-13 12:20:16.640 [info] [Error - 12:20:16 PM] [workspace/diagnostic] [LSP] System.ArgumentException: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.VerifyTree(SyntaxTree tree) in /_/src/Compilers/Core/Portable/DiagnosticAnalyzer/CompilationWithAnalyzers.cs:line 208
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzersPair.GetAnalysisResultAsync(SyntaxTree tree, Nullable`1 filterSpan, ImmutableArray`1 projectAnalyzers, ImmutableArray`1 hostAnalyzers, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/CompilationWithAnalyzersPair.cs:line 80
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 352
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, Project project, DiagnosticAnalyzerInfoCache analyzerInfoCache, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 327
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeInProcAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, RemoteHostClient client, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 89
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.<>c__DisplayClass7_0.<<AnalyzeAsync>g__AnalyzeCoreAsync|0>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 75
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 60
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.GetAnalysisResultAsync(DocumentAnalysisScope analysisScope, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 158
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.GetSyntaxDiagnosticsAsync(DiagnosticAnalyzer analyzer, Boolean isCompilerAnalyzer, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 214
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.ComputeDiagnosticsAsync(DiagnosticAnalyzer analyzer, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 121
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDocumentDiagnosticsForAnalyzerCoreAsync(DiagnosticAnalyzer analyzer, DocumentAnalysisExecutor executor, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 47
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDocumentDiagnosticsCoreAsync(DocumentAnalysisExecutor executor, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 33
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass23_0.<<GetDiagnosticsForSpanAsync>g__ComputeDocumentDiagnosticsAsync|3>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 250
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass23_0.<<GetDiagnosticsForSpanAsync>g__GetAsync|1>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 155
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, Func`2 shouldIncludeDiagnostic, ICodeActionRequestPriorityProvider priorityProvider, DiagnosticKind diagnosticKind, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 86
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, Func`2 shouldIncludeDiagnostic, ICodeActionRequestPriorityProvider priorityProvider, DiagnosticKind diagnosticKinds, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DiagnosticAnalyzerService.cs:line 113
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractWorkspaceDocumentDiagnosticSource.FullSolutionAnalysisDiagnosticSource.GetDiagnosticsAsync(RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticSources/AbstractWorkspaceDocumentDiagnosticSource.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.DiagnosticsPullCache.ComputeDataAsync(DiagnosticsRequestState state, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticsPullCache.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.CacheItem.UpdateCacheItemAsync(VersionedPullCache`4 cache, Nullable`1 previousPullResult, Boolean isFullyLoaded, TState state, String language, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.GetOrComputeNewDataAsync(Dictionary`2 idToClientLastResult, ProjectOrDocumentId projectOrDocumentId, Project project, TState state, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.HandleRequestAsync(TDiagnosticsParams diagnosticsParams, RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/AbstractPullDiagnosticHandler.cs:line 159
   at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, String language, CancellationToken cancellationToken)
2025-07-13 12:20:16.641 [info] [Error - 12:20:16 PM] Request textDocument/diagnostic failed.
2025-07-13 12:20:16.641 [info]   Message: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
  Code: -32000 
[object Object]
2025-07-13 12:20:16.641 [info] [Error - 12:20:16 PM] Workspace diagnostic pull failed.
2025-07-13 12:20:16.641 [info]   Message: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
  Code: -32000 
[object Object]
2025-07-13 12:20:19.837 [info] [Error - 12:20:19 PM] [workspace/diagnostic] [LSP] System.ArgumentException: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.VerifyTree(SyntaxTree tree) in /_/src/Compilers/Core/Portable/DiagnosticAnalyzer/CompilationWithAnalyzers.cs:line 208
   at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzersPair.GetAnalysisResultAsync(SyntaxTree tree, Nullable`1 filterSpan, ImmutableArray`1 projectAnalyzers, ImmutableArray`1 hostAnalyzers, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/CompilationWithAnalyzersPair.cs:line 80
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 352
   at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzersPair compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, Project project, DiagnosticAnalyzerInfoCache analyzerInfoCache, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Diagnostics/Extensions.cs:line 327
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeInProcAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, RemoteHostClient client, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 89
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.<>c__DisplayClass7_0.<<AnalyzeAsync>g__AnalyzeCoreAsync|0>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 75
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.InProcOrRemoteHostAnalyzerRunner.AnalyzeAsync(DocumentAnalysisScope documentAnalysisScope, Project project, CompilationWithAnalyzersPair compilationWithAnalyzers, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/InProcOrRemoteHostAnalyzerRunner.cs:line 60
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.GetAnalysisResultAsync(DocumentAnalysisScope analysisScope, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 158
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.GetSyntaxDiagnosticsAsync(DiagnosticAnalyzer analyzer, Boolean isCompilerAnalyzer, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 214
   at Microsoft.CodeAnalysis.Diagnostics.DocumentAnalysisExecutor.ComputeDiagnosticsAsync(DiagnosticAnalyzer analyzer, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DocumentAnalysisExecutor.cs:line 121
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDocumentDiagnosticsForAnalyzerCoreAsync(DiagnosticAnalyzer analyzer, DocumentAnalysisExecutor executor, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 47
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.ComputeDocumentDiagnosticsCoreAsync(DocumentAnalysisExecutor executor, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 33
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass23_0.<<GetDiagnosticsForSpanAsync>g__ComputeDocumentDiagnosticsAsync|3>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 250
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.<>c__DisplayClass23_0.<<GetDiagnosticsForSpanAsync>g__GetAsync|1>d.MoveNext() in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 155
--- End of stack trace from previous location ---
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.DiagnosticIncrementalAnalyzer.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, Func`2 shouldIncludeDiagnostic, ICodeActionRequestPriorityProvider priorityProvider, DiagnosticKind diagnosticKind, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/EngineV2/DiagnosticIncrementalAnalyzer_GetDiagnosticsForSpan.cs:line 86
   at Microsoft.CodeAnalysis.Diagnostics.DiagnosticAnalyzerService.GetDiagnosticsForSpanAsync(TextDocument document, Nullable`1 range, Func`2 shouldIncludeDiagnostic, ICodeActionRequestPriorityProvider priorityProvider, DiagnosticKind diagnosticKinds, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Diagnostics/Service/DiagnosticAnalyzerService.cs:line 113
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractWorkspaceDocumentDiagnosticSource.FullSolutionAnalysisDiagnosticSource.GetDiagnosticsAsync(RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticSources/AbstractWorkspaceDocumentDiagnosticSource.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.DiagnosticsPullCache.ComputeDataAsync(DiagnosticsRequestState state, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/DiagnosticsPullCache.cs:line 49
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.CacheItem.UpdateCacheItemAsync(VersionedPullCache`4 cache, Nullable`1 previousPullResult, Boolean isFullyLoaded, TState state, String language, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.VersionedPullCache`4.GetOrComputeNewDataAsync(Dictionary`2 idToClientLastResult, ProjectOrDocumentId projectOrDocumentId, Project project, TState state, CancellationToken cancellationToken)
   at Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.AbstractPullDiagnosticHandler`3.HandleRequestAsync(TDiagnosticsParams diagnosticsParams, RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Diagnostics/AbstractPullDiagnosticHandler.cs:line 159
   at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, String language, CancellationToken cancellationToken)
2025-07-13 12:20:19.838 [info] [Error - 12:20:19 PM] Request textDocument/diagnostic failed.
2025-07-13 12:20:19.838 [info]   Message: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
  Code: -32000 
[object Object]
2025-07-13 12:20:19.838 [info] [Error - 12:20:19 PM] Workspace diagnostic pull failed.
2025-07-13 12:20:19.838 [info]   Message: Syntax tree doesn't belong to the underlying 'Compilation'. (Parameter 'tree')
  Code: -32000 
[object Object]

C# LSP Trace Logs

Post the output from Output-->C# LSP Trace Logs here. Requires the `C#` output window log level to be set to `Trace`

Environment information

VSCode version: 1.102.0
C# Extension: 2.84.19
Using OmniSharp: false

Dotnet Information

.NET SDK: Version: 10.0.100-preview.5.25277.114 Commit: ddf39a1b46 Workload version: 10.0.100-manifests.a07d1f1a MSBuild version: 17.15.0-preview-25277-114+ddf39a1b4

Runtime Environment:
OS Name: Windows
OS Version: 10.0.26100
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\10.0.100-preview.5.25277.114\

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.
Workloads are configured to install and update using workload versions, but none were found. Run "dotnet workload restore" to install a workload version.

Host:
Version: 10.0.0-preview.5.25277.114
Architecture: x64
Commit: ddf39a1b46

.NET SDKs installed:
8.0.412 [C:\Program Files\dotnet\sdk]
9.0.302 [C:\Program Files\dotnet\sdk]
10.0.100-preview.5.25277.114 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 8.0.18 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.7 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 10.0.0-preview.5.25277.114 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 8.0.18 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 10.0.0-preview.5.25277.114 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 8.0.18 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.7 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 10.0.0-preview.5.25277.114 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Visual Studio Code Extensions

Extension	Author	Version	Folder Name
auto-close-tag	formulahendry	0.5.15	formulahendry.auto-close-tag-0.5.15
change-case	wmaurer	1.0.0	wmaurer.change-case-1.0.0
code-spell-checker	streetsidesoftware	4.0.47	streetsidesoftware.code-spell-checker-4.0.47
copilot	GitHub	1.342.0	github.copilot-1.342.0
copilot-chat	GitHub	0.29.0	github.copilot-chat-0.29.0
csdevkit	ms-dotnettools	1.30.44	ms-dotnettools.csdevkit-1.30.44-win32-x64
csharp	ms-dotnettools	2.84.19	ms-dotnettools.csharp-2.84.19-win32-x64
docker	docker	0.12.0	docker.docker-0.12.0-win32-x64
dotenv	mikestead	1.0.1	mikestead.dotenv-1.0.1
EditorConfig	EditorConfig	0.17.4	editorconfig.editorconfig-0.17.4
eml	leighlondon	0.4.0	leighlondon.eml-0.4.0
hexeditor	ms-vscode	1.11.1	ms-vscode.hexeditor-1.11.1
JavaScriptSnippets	xabikos	1.8.0	xabikos.javascriptsnippets-1.8.0
markdown-mermaid	bierner	1.28.0	bierner.markdown-mermaid-1.28.0
mermaid-markdown-syntax-highlighting	bpruitt-goddard	1.7.4	bpruitt-goddard.mermaid-markdown-syntax-highlighting-1.7.4
msbuild-project-tools	tintoy	0.6.6	tintoy.msbuild-project-tools-0.6.6
prettier-vscode	esbenp	11.0.0	esbenp.prettier-vscode-11.0.0
remote-explorer	ms-vscode	0.5.0	ms-vscode.remote-explorer-0.5.0
remote-ssh	ms-vscode-remote	0.120.0	ms-vscode-remote.remote-ssh-0.120.0
remote-ssh-edit	ms-vscode-remote	0.87.0	ms-vscode-remote.remote-ssh-edit-0.87.0
remote-wsl	ms-vscode-remote	0.99.0	ms-vscode-remote.remote-wsl-0.99.0
render-crlf	medo64	1.9.1	medo64.render-crlf-1.9.1
rest-client	humao	0.25.1	humao.rest-client-0.25.1
t4-support	zbecknell	0.7.0	zbecknell.t4-support-0.7.0
Theme-TomorrowKit	ms-vscode	0.1.4	ms-vscode.theme-tomorrowkit-0.1.4
todo-tree	Gruntfuggly	0.0.226	gruntfuggly.todo-tree-0.0.226
toggle-hidden	adrianwilczynski	1.0.2	adrianwilczynski.toggle-hidden-1.0.2
trailing-spaces	shardulm94	0.4.1	shardulm94.trailing-spaces-0.4.1
vscode-commons	redhat	0.0.6	redhat.vscode-commons-0.0.6
vscode-containers	ms-azuretools	2.0.3	ms-azuretools.vscode-containers-2.0.3
vscode-dotnet-runtime	ms-dotnettools	2.3.6	ms-dotnettools.vscode-dotnet-runtime-2.3.6
vscode-github-actions	github	0.27.2	github.vscode-github-actions-0.27.2
vscode-graphql-syntax	GraphQL	1.3.8	graphql.vscode-graphql-syntax-1.3.8
vscode-highlight	fabiospampinato	1.9.0	fabiospampinato.vscode-highlight-1.9.0
vscode-markdownlint	DavidAnson	0.60.0	davidanson.vscode-markdownlint-0.60.0
vscode-sort-json	richie5um2	1.20.0	richie5um2.vscode-sort-json-1.20.0
vscode-svg-previewer	vitaliymaz	0.7.0	vitaliymaz.vscode-svg-previewer-0.7.0
vscode-yaml	redhat	1.18.0	redhat.vscode-yaml-1.18.0

Extension version: 2.84.19
VS Code version: Code 1.102.0 (cb0c47c0cfaad0757385834bd89d410c78a856c0, 2025-07-09T22:10:34.600Z)
OS version: Windows_NT x64 10.0.26100
Modes:

System Info

Item	Value
CPUs	13th Gen Intel(R) Core(TM) i5-13600KF (20 x 3494)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	127.83GB (95.58GB free)
Process Argv	--folder-uri file:///d%3A/*
Screen Reader	no
VM	0%

[claudioalbanese]

I am experiencing the same issue, it started happening a couple days ago and it is a huge annoyance. Intellisense breaks down after a few minutes of use and I need to restart the VS code instance to keep working.

[RikkiGibson]

Sorry that this is happening. We just put out prerelease v2.86.19 of the prerelease C# extension. It would be great to know if the issue is still occurring with that.

Off the cuff I am unsure why the analyzer runner would be trying to get diagnostics for a tree that is not part of the compilation.

[FlorianInova]

I have the same Problem with the same Version with
VSCode 1.103.0-insider
C# 2.84.19
Will test the prerelease version. - Unfortunately the message persists. Note I use a dev container.

[glen-84]

Still occurring with the prerelease version.

[RikkiGibson]

I'm going to try to pull down the indicated repo and see if I can at least reproduce locally.

@dibarbet This is one that might become easier to investigate with improvements to distributed logging.

[RikkiGibson]

I cloned the GraphQL Platform repo, ran init.cmd, opened in vscode, and poked around at some of the C# files. I wasn't able to repro the problem straight away.

Is there any more info you can provide here, such as specific names of files that were opened/edited, specific commit you had checked out, etc.

I can try leaving the repo open for a while and inspect things a little later to see if that will help with a repro.