Visual Studio reports "Feature 'Diagnostic analyzer runner' is currently unavailable due to an internal error" as a result of AnalyzerExecutor.ExecuteBlockActionsCore calling Enumerable.Cast( null )

[antiduh]

Version Used: Visual Studio 2022 17.4.2

Steps to Reproduce: Occurs randomly while typing.

Highlighted Error:

RPC server exception:
System.ArgumentNullException: Value cannot be null. (Parameter 'source')
      at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
      at System.Linq.Enumerable.Cast[TResult](IEnumerable source)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteBlockActionsCore[TBlockStartAction,TBlockAction,TNodeAction,TNodeStateData,TNode,TLanguageKindEnum](IEnumerable`1 startActions, IEnumerable`1 actions, IEnumerable`1 endActions, DiagnosticAnalyzer analyzer, SyntaxNode declaredNode, ISymbol declaredSymbol, ImmutableArray`1 executableBlocks, Func`2 getNodesToAnalyze, SemanticModel semanticModel, Func`2 getKind, BlockAnalyzerStateData`2 analyzerState, Boolean isGeneratedCode)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.TryExecuteCodeBlockActions[TLanguageKindEnum](IEnumerable`1 codeBlockStartActions, IEnumerable`1 codeBlockActions, IEnumerable`1 codeBlockEndActions, DiagnosticAnalyzer analyzer, SyntaxNode declaredNode, ISymbol declaredSymbol, ImmutableArray`1 executableCodeBlocks, SemanticModel semanticModel, Func`2 getKind, Int32 declarationIndex, AnalysisScope analysisScope, AnalysisState analysisState, Boolean isGeneratedCode)

Full Stack trace:

StreamJsonRpc.RemoteInvocationException: Value cannot be null. (Parameter 'source')
   at StreamJsonRpc.JsonRpc.<InvokeCoreAsync>d__143`1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.CodeAnalysis.Remote.BrokeredServiceConnection`1.<TryInvokeAsync>d__16`1.MoveNext()
RPC server exception:
System.ArgumentNullException: Value cannot be null. (Parameter 'source')
      at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
      at System.Linq.Enumerable.Cast[TResult](IEnumerable source)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.ExecuteBlockActionsCore[TBlockStartAction,TBlockAction,TNodeAction,TNodeStateData,TNode,TLanguageKindEnum](IEnumerable`1 startActions, IEnumerable`1 actions, IEnumerable`1 endActions, DiagnosticAnalyzer analyzer, SyntaxNode declaredNode, ISymbol declaredSymbol, ImmutableArray`1 executableBlocks, Func`2 getNodesToAnalyze, SemanticModel semanticModel, Func`2 getKind, BlockAnalyzerStateData`2 analyzerState, Boolean isGeneratedCode)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerExecutor.TryExecuteCodeBlockActions[TLanguageKindEnum](IEnumerable`1 codeBlockStartActions, IEnumerable`1 codeBlockActions, IEnumerable`1 codeBlockEndActions, DiagnosticAnalyzer analyzer, SyntaxNode declaredNode, ISymbol declaredSymbol, ImmutableArray`1 executableCodeBlocks, SemanticModel semanticModel, Func`2 getKind, Int32 declarationIndex, AnalysisScope analysisScope, AnalysisState analysisState, Boolean isGeneratedCode)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.<>c__DisplayClass12_0.<TryExecuteDeclaringReferenceActions>g__executeCodeBlockActions|8(ImmutableArray`1 executableCodeBlocks, IEnumerable`1 codeBlockActions)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.<>c__DisplayClass12_0.<TryExecuteDeclaringReferenceActions>g__executeExecutableCodeActions|3()
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.TryExecuteDeclaringReferenceActions(SyntaxReference decl, Int32 declarationIndex, SymbolDeclaredCompilationEvent symbolEvent, AnalysisScope analysisScope, AnalysisState analysisState, GroupedAnalyzerActions coreActions, GroupedAnalyzerActions additionalPerSymbolActions, Boolean shouldExecuteSyntaxNodeActions, Boolean shouldExecuteOperationActions, Boolean shouldExecuteCodeBlockActions, Boolean shouldExecuteOperationBlockActions, Boolean isInGeneratedCode, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver`1.TryExecuteDeclaringReferenceActions(SymbolDeclaredCompilationEvent symbolEvent, AnalysisScope analysisScope, AnalysisState analysisState, Boolean isGeneratedCodeSymbol, IGroupedAnalyzerActions additionalPerSymbolActions, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.TryProcessSymbolDeclaredAsync(SymbolDeclaredCompilationEvent symbolEvent, AnalysisScope analysisScope, AnalysisState analysisState, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.TryProcessEventCoreAsync(CompilationEvent compilationEvent, AnalysisScope analysisScope, AnalysisState analysisState, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.ProcessEventAsync(CompilationEvent e, AnalysisScope analysisScope, AnalysisState analysisState, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.ProcessCompilationEventsCoreAsync(AnalysisScope analysisScope, AnalysisState analysisState, Boolean prePopulatedEventQueue, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.<>c__DisplayClass128_0.<<ProcessCompilationEventsAsync>b__2>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.ProcessCompilationEventsAsync(AnalysisScope analysisScope, AnalysisState analysisState, Boolean prePopulatedEventQueue, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.ExecutePrimaryAnalysisTaskAsync(AnalysisScope analysisScope, AnalysisState analysisState, Boolean usingPrePopulatedEventQueue, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.AnalyzerDriver.AttachQueueAndProcessAllEventsAsync(AsyncQueue`1 eventQueue, AnalysisScope analysisScope, AnalysisState analysisState, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.ComputeAnalyzerDiagnosticsCoreAsync(AnalyzerDriver driver, AsyncQueue`1 eventQueue, AnalysisScope analysisScope, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.<>c__DisplayClass67_1.<<ComputeAnalyzerDiagnosticsAsync>b__1>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.ComputeAnalyzerDiagnosticsAsync(AnalysisScope analysisScope, Func`1 getPendingEventsOpt, Int32 newTaskToken, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.ComputeAnalyzerSemanticDiagnosticsAsync(SemanticModel model, AnalysisScope analysisScope, CancellationToken cancellationToken, Boolean forceCompletePartialTrees)
      at Microsoft.CodeAnalysis.Diagnostics.CompilationWithAnalyzers.GetAnalysisResultCoreAsync(SemanticModel model, Nullable`1 filterSpan, ImmutableArray`1 analyzers, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzers compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Diagnostics.Extensions.GetAnalysisResultAsync(CompilationWithAnalyzers compilationWithAnalyzers, DocumentAnalysisScope documentAnalysisScope, Project project, DiagnosticAnalyzerInfoCache analyzerInfoCache, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.Diagnostics.DiagnosticComputer.AnalyzeAsync(CompilationWithAnalyzers compilationWithAnalyzers, BidirectionalMap`2 analyzerToIdMap, ImmutableArray`1 analyzers, SkippedHostAnalyzersInfo skippedAnalyzersInfo, Boolean reportSuppressedDiagnostics, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.Diagnostics.DiagnosticComputer.GetDiagnosticsAsync(IEnumerable`1 analyzerIds, Boolean reportSuppressedDiagnostics, Boolean logPerformanceInfo, Boolean getTelemetryInfo, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.RemoteDiagnosticAnalyzerService.<>c__DisplayClass4_0.<<CalculateDiagnosticsAsync>b__0>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Remote.RemoteWorkspace.<>c__DisplayClass7_0`1.<<RunWithSolutionAsync>g__ProcessSolutionAsync|1>d.MoveNext()
   --- End of stack trace from previous location ---
      at Microsoft.CodeAnalysis.Remote.RemoteWorkspace.RunWithSolutionAsync[T](AssetProvider assetProvider, Checksum solutionChecksum, Int32 workspaceVersion, Boolean updatePrimaryBranch, Func`2 implementation, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.RemoteWorkspace.RunWithSolutionAsync[T](AssetProvider assetProvider, Checksum solutionChecksum, Int32 workspaceVersion, Boolean updatePrimaryBranch, Func`2 implementation, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.BrokeredServiceBase.RunWithSolutionAsync[T](Checksum solutionChecksum, Func`2 implementation, CancellationToken cancellationToken)
      at Microsoft.CodeAnalysis.Remote.RemoteDiagnosticAnalyzerService.CalculateDiagnosticsAsync(Checksum solutionChecksum, DiagnosticArguments arguments, CancellationToken cancellationToken)

[Youssef1313]

@mavasani Is this the one you fixed in #65083 ?

[mavasani]

Yes, this should be fixed in 17.4.3 once released.