Request codeLens/resolve failed - cannot find System.Threading.Channels Version 10.0.0.0

Type: Bug

## Issue Description ##
I am getting a lot of errors on the latest C# Dev Kit after refactoring some code with GitHub Copilot. I don't actually know the steps to reproduce the issue as it just started happening out of the blue. The potential key clue in the logs is that it cannot find System.Threading.Channels Version 10.0.0.0

Related to #9674, #9496, #9239 - When is this going to get fixed and do I need to set-up a bot to auto-reply to keep this issue alive after a crazy 14 day policy, or are we content with telling customers they need to attach 10MB stack traces to a GitHub Issues API that doesnt even support files that big?

```
2026-09-14 08:34:42.917 [info] Locating .NET runtime version 10.0.5
2026-09-14 08:34:43.058 [info] Dotnet path: C:\Program Files\dotnet\dotnet.exe
2026-09-14 08:34:43.058 [info] Activating C# + C# Dev Kit...
2026-09-14 08:34:43.306 [info] info: Program[0]
2026-09-14 08:34:43.306 [info] Server started with process ID 33420
2026-09-14 08:34:43.962 [info] [Program] Language server initialized
2026-09-14 08:34:43.963 [info] [Program] Monitoring client process 24384 for exit
2026-09-14 08:34:48.308 [info] [initialized] [Microsoft.CodeAnalysis.LanguageServer.FileBasedPrograms.FileBasedProgramsEntryPointDiscovery] Finished discovery in '' in 74 milliseconds
2026-09-14 08:34:52.873 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:23.713 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:23.738 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:23.768 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:23.768 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:23.878 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:23.898 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.049 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.057 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.066 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.072 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.081 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.093 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.104 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.119 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.121 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.132 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.144 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.154 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.156 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.164 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.173 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.186 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \Weiss.Reports.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.196 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.214 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.224 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.233 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.234 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.303 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.304 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.307 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.308 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.309 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.312 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.313 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.338 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \Weiss.Reports.Deployer.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.347 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.375 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \PowerShellBuildProject.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.419 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.442 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.503 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.680 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.815 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:24.876 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 08:35:25.085 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:25.403 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:26.022 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:34.170 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:34.172 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.csproj loaded by C# Dev Kit
2026-09-14 08:35:34.173 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project \.Tests.csproj loaded by C# Dev Kit
2026-09-14 18:26:35.529 [error] [workspace/symbol] [LSP] System.IO.FileNotFoundException: Could not load file or assembly 'System.Threading.Tasks.Parallel, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified.
File name: 'System.Threading.Tasks.Parallel, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.ProcessOrderedProjectsAsync(Boolean parallel, ImmutableArray`1 orderedProjects, HashSet`1 seenResults, Func`5 processProjectAsync, CancellationToken cancellationToken)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.ProcessOrderedProjectsAsync(Boolean parallel, ImmutableArray`1 orderedProjects, HashSet`1 seenResults, Func`5 processProjectAsync, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchFullyLoadedProjectsAsync(ImmutableArray`1 orderedProjects, HashSet`1 seenItems, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 422
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchSpecificProjectsAsync(Boolean isFullyLoaded, NavigateToDocumentSupport documentSupport, ImmutableArray`1 orderedProjects, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 255
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchAllProjectsAsync(Boolean isFullyLoaded, NavigateToDocumentSupport documentSupport, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 226
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchAsync(NavigateToSearchScope searchScope, NavigateToDocumentSupport documentSupport, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 149
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchAsync(NavigateToSearchScope searchScope, NavigateToDocumentSupport documentSupport, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 180
at Microsoft.CodeAnalysis.LanguageServer.Handler.WorkspaceSymbolsHandler.HandleRequestAsync(WorkspaceSymbolParams request, RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Symbols/WorkspaceSymbolsHandler.cs:line 68
at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, CancellationToken cancellationToken) in /_/src/LanguageServer/Microsoft.CommonLanguageServerProtocol.Framework/QueueItem.cs:line 192
2026-09-14 18:26:35.537 [error] Request workspace/symbol failed.
Message: Could not load file or assembly 'System.Threading.Tasks.Parallel, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified.
Code: -32000
[object Object]

2026-09-14 18:26:40.618 [error] [workspace/symbol] [LSP] System.IO.FileNotFoundException: Could not load file or assembly 'System.Threading.Tasks.Parallel, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified.
File name: 'System.Threading.Tasks.Parallel, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.ProcessOrderedProjectsAsync(Boolean parallel, ImmutableArray`1 orderedProjects, HashSet`1 seenResults, Func`5 processProjectAsync, CancellationToken cancellationToken)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.ProcessOrderedProjectsAsync(Boolean parallel, ImmutableArray`1 orderedProjects, HashSet`1 seenResults, Func`5 processProjectAsync, CancellationToken cancellationToken)
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchFullyLoadedProjectsAsync(ImmutableArray`1 orderedProjects, HashSet`1 seenItems, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 422
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchSpecificProjectsAsync(Boolean isFullyLoaded, NavigateToDocumentSupport documentSupport, ImmutableArray`1 orderedProjects, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 255
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchAllProjectsAsync(Boolean isFullyLoaded, NavigateToDocumentSupport documentSupport, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 226
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchAsync(NavigateToSearchScope searchScope, NavigateToDocumentSupport documentSupport, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 149
at Microsoft.CodeAnalysis.NavigateTo.NavigateToSearcher.SearchAsync(NavigateToSearchScope searchScope, NavigateToDocumentSupport documentSupport, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/NavigateTo/NavigateToSearcher.cs:line 180
at Microsoft.CodeAnalysis.LanguageServer.Handler.WorkspaceSymbolsHandler.HandleRequestAsync(WorkspaceSymbolParams request, RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Symbols/WorkspaceSymbolsHandler.cs:line 68
at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, CancellationToken cancellationToken) in /_/src/LanguageServer/Microsoft.CommonLanguageServerProtocol.Framework/QueueItem.cs:line 192
2026-09-14 18:26:40.621 [error] Request workspace/symbol failed.
Message: Could not load file or assembly 'System.Threading.Tasks.Parallel, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified.
Code: -32000
[object Object]

2026-09-14 18:44:24.933 [error] [textDocument/definition] [LSP] System.IO.FileNotFoundException: Could not load file or assembly 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.
File name: 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs,TResult](IAsyncEnumerable`1 source, Func`5 produceItems, Func`4 consumeItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 178
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs,TResult](IAsyncEnumerable`1 source, Func`5 produceItems, Func`4 consumeItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 178
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs](IAsyncEnumerable`1 source, Func`5 produceItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 211
at Microsoft.CodeAnalysis.SolutionCompilationState.TranslationAction.AddDocumentsAction.TransformCompilationAsync(Compilation oldCompilation, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.TranslationAction_Actions.cs:line 182
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__ApplyFirstTransformationAsync|6>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 423
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__CollapseInProgressStateAsync|2>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 375
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__BuildFinalStateAsync|0>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 305
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetOrBuildFinalStateAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 267
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetCompilationSlowAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 238
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetCompilationAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 227
at Microsoft.CodeAnalysis.Shared.Extensions.ProjectExtensions.GetRequiredCompilationAsync(Project project, CancellationToken cancellationToken) in /_/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/Extensions/ProjectExtensions.cs:line 96
at Microsoft.CodeAnalysis.Document.<>c__DisplayClass28_0.<g__GetSemanticModelWorkerAsync|0>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 351
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.Document.GetSemanticModelHelperAsync(Boolean disableNullableAnalysis, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 331
at Microsoft.CodeAnalysis.Document.GetSemanticModelAsync(SemanticModelOptions options, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 286
at Microsoft.CodeAnalysis.Document.GetRequiredNullableDisabledSemanticModelAsync(CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 300
at Microsoft.CodeAnalysis.Navigation.AbstractNavigableItemsService.<>c__DisplayClass1_0.<g__GetSymbolAsync|0>d.MoveNext() in /_/src/Features/Core/Portable/Navigation/AbstractNavigableItemsService.cs:line 46
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.Navigation.AbstractNavigableItemsService.GetNavigableItemsAsync(Document document, Int32 position, Boolean forSymbolType, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/Navigation/AbstractNavigableItemsService.cs:line 31
at Microsoft.CodeAnalysis.LanguageServer.Handler.AbstractGoToDefinitionHandler.GetDefinitionsAsync(IGlobalOptionService globalOptions, IMetadataAsSourceFileService metadataAsSourceFileService, Workspace workspace, Document document, Boolean forSymbolType, LinePosition linePosition, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Definitions/AbstractGoToDefinitionHandler.cs:line 59
at Microsoft.CodeAnalysis.LanguageServer.Handler.AbstractGoToDefinitionHandler.GetDefinitionAsync(TextDocumentPositionParams request, Boolean forSymbolType, RequestContext context, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/Definitions/AbstractGoToDefinitionHandler.cs:line 47
at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, CancellationToken cancellationToken)
2026-09-14 18:44:24.936 [error] Request textDocument/definition failed.
Message: Could not load file or assembly 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.
Code: -32000
[object Object]

2026-09-14 18:58:07.748 [error] Request codeLens/resolve failed.
Message: Could not load file or assembly 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.
Code: -32000
[object Object]
2026-09-14 18:58:07.749 [error] [codeLens/resolve] [LSP] System.IO.FileNotFoundException: Could not load file or assembly 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.
File name: 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs,TResult](IAsyncEnumerable`1 source, Func`5 produceItems, Func`4 consumeItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 178
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs,TResult](IAsyncEnumerable`1 source, Func`5 produceItems, Func`4 consumeItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 178
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs](IAsyncEnumerable`1 source, Func`5 produceItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 211
at Microsoft.CodeAnalysis.SolutionCompilationState.TranslationAction.AddDocumentsAction.TransformCompilationAsync(Compilation oldCompilation, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.TranslationAction_Actions.cs:line 182
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__ApplyFirstTransformationAsync|6>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 423
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__CollapseInProgressStateAsync|2>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 375
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__BuildFinalStateAsync|0>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 304
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetOrBuildFinalStateAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 267
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetCompilationSlowAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 238
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetCompilationAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 231
at Microsoft.CodeAnalysis.Shared.Extensions.ProjectExtensions.GetRequiredCompilationAsync(Project project, CancellationToken cancellationToken) in /_/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/Extensions/ProjectExtensions.cs:line 96
at Microsoft.CodeAnalysis.Document.<>c__DisplayClass28_0.<g__GetSemanticModelWorkerAsync|0>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 351
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.Document.GetSemanticModelHelperAsync(Boolean disableNullableAnalysis, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 331
at Microsoft.CodeAnalysis.CodeLens.CodeLensReferencesService.FindAsync[T](Solution solution, DocumentId documentId, SyntaxNode syntaxNode, Func`2 onResults, Func`2 onCapped, Int32 searchCap, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/CodeLens/CodeLensReferencesService.cs:line 53
at Microsoft.CodeAnalysis.CodeLens.CodeLensReferencesService.GetReferenceCountAsync(Solution solution, DocumentId documentId, SyntaxNode syntaxNode, Int32 maxSearchResults, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/CodeLens/CodeLensReferencesService.cs:line 93
at Microsoft.CodeAnalysis.LanguageServer.Handler.CodeLens.CodeLensResolveHandler.ResolveCodeLensAsync(CodeLens request, Document document, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/CodeLens/CodeLensResolveHandler.cs:line 73
at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, CancellationToken cancellationToken)

2026-09-14 18:58:39.758 [error] [textDocument/hover] [LanguageServerExtensionManager] Microsoft.CodeAnalysis.CSharp.QuickInfo.CSharpSemanticQuickInfoProvider threw an exception. System.IO.FileNotFoundException: Could not load file or assembly 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.
File name: 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs,TResult](IAsyncEnumerable`1 source, Func`5 produceItems, Func`4 consumeItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 178
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs,TResult](IAsyncEnumerable`1 source, Func`5 produceItems, Func`4 consumeItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 178
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs](IAsyncEnumerable`1 source, Func`5 produceItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 211
at Microsoft.CodeAnalysis.SolutionCompilationState.TranslationAction.AddDocumentsAction.TransformCompilationAsync(Compilation oldCompilation, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.TranslationAction_Actions.cs:line 182
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__ApplyFirstTransformationAsync|6>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 423
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__CollapseInProgressStateAsync|2>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 375
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__BuildFinalStateAsync|0>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 304
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetOrBuildFinalStateAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 267
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetCompilationSlowAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 238
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetCompilationAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 231
at Microsoft.CodeAnalysis.Shared.Extensions.ProjectExtensions.GetRequiredCompilationAsync(Project project, CancellationToken cancellationToken) in /_/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/Extensions/ProjectExtensions.cs:line 96
at Microsoft.CodeAnalysis.Document.<>c__DisplayClass28_0.<g__GetSemanticModelWorkerAsync|0>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 351
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.Document.GetSemanticModelHelperAsync(Boolean disableNullableAnalysis, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 331
at Microsoft.CodeAnalysis.Shared.Extensions.DocumentExtensions.GetRequiredSemanticModelAsync(Document document, CancellationToken cancellationToken) in /_/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/Extensions/DocumentExtensions.cs:line 38
at Microsoft.CodeAnalysis.QuickInfo.CommonSemanticQuickInfoProvider.ComputeQuickInfoDataAsync(QuickInfoContext context, SyntaxToken token) in /_/src/Features/Core/Portable/QuickInfo/CommonSemanticQuickInfoProvider.cs:line 63
at Microsoft.CodeAnalysis.QuickInfo.CommonSemanticQuickInfoProvider.BuildQuickInfoAsync(QuickInfoContext context, SyntaxToken token) in /_/src/Features/Core/Portable/QuickInfo/CommonSemanticQuickInfoProvider.cs:line 28
at Microsoft.CodeAnalysis.QuickInfo.CommonQuickInfoProvider.GetQuickInfoAsync(QuickInfoContext context, SyntaxToken token) in /_/src/Features/Core/Portable/QuickInfo/CommonQuickInfoProvider.cs:line 77
at Microsoft.CodeAnalysis.QuickInfo.CommonQuickInfoProvider.GetQuickInfoAsync(QuickInfoContext context) in /_/src/Features/Core/Portable/QuickInfo/CommonQuickInfoProvider.cs:line 26
at Microsoft.CodeAnalysis.Extensions.IExtensionManagerExtensions.PerformFunctionAsync[T](IExtensionManager extensionManager, Object extension, Func`2 function, T defaultValue, CancellationToken cancellationToken)
2026-09-14 18:59:02.590 [error] [codeLens/resolve] [LSP] System.IO.FileNotFoundException: Could not load file or assembly 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.
File name: 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs,TResult](IAsyncEnumerable`1 source, Func`5 produceItems, Func`4 consumeItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 178
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs,TResult](IAsyncEnumerable`1 source, Func`5 produceItems, Func`4 consumeItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 178
at Microsoft.CodeAnalysis.Threading.ProducerConsumer`1.RunParallelAsync[TSource,TArgs](IAsyncEnumerable`1 source, Func`5 produceItems, TArgs args, CancellationToken cancellationToken) in /_/src/Dependencies/Threading/ProducerConsumer.cs:line 211
at Microsoft.CodeAnalysis.SolutionCompilationState.TranslationAction.AddDocumentsAction.TransformCompilationAsync(Compilation oldCompilation, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.TranslationAction_Actions.cs:line 182
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__ApplyFirstTransformationAsync|6>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 423
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__CollapseInProgressStateAsync|2>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 375
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.<>c__DisplayClass25_0.<g__BuildFinalStateAsync|0>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 304
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetOrBuildFinalStateAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 267
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetCompilationSlowAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 238
at Microsoft.CodeAnalysis.SolutionCompilationState.RegularCompilationTracker.GetCompilationAsync(SolutionCompilationState compilationState, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/SolutionCompilationState.RegularCompilationTracker.cs:line 231
at Microsoft.CodeAnalysis.Shared.Extensions.ProjectExtensions.GetRequiredCompilationAsync(Project project, CancellationToken cancellationToken) in /_/src/Workspaces/SharedUtilitiesAndExtensions/Workspace/Core/Extensions/ProjectExtensions.cs:line 96
at Microsoft.CodeAnalysis.Document.<>c__DisplayClass28_0.<g__GetSemanticModelWorkerAsync|0>d.MoveNext() in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 351
--- End of stack trace from previous location ---
at Microsoft.CodeAnalysis.Document.GetSemanticModelHelperAsync(Boolean disableNullableAnalysis, CancellationToken cancellationToken) in /_/src/Workspaces/Core/Portable/Workspace/Solution/Document.cs:line 331
at Microsoft.CodeAnalysis.CodeLens.CodeLensReferencesService.FindAsync[T](Solution solution, DocumentId documentId, SyntaxNode syntaxNode, Func`2 onResults, Func`2 onCapped, Int32 searchCap, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/CodeLens/CodeLensReferencesService.cs:line 53
at Microsoft.CodeAnalysis.CodeLens.CodeLensReferencesService.GetReferenceCountAsync(Solution solution, DocumentId documentId, SyntaxNode syntaxNode, Int32 maxSearchResults, CancellationToken cancellationToken) in /_/src/Features/Core/Portable/CodeLens/CodeLensReferencesService.cs:line 93
at Microsoft.CodeAnalysis.LanguageServer.Handler.CodeLens.CodeLensResolveHandler.ResolveCodeLensAsync(CodeLens request, Document document, CancellationToken cancellationToken) in /_/src/LanguageServer/Protocol/Handler/CodeLens/CodeLensResolveHandler.cs:line 73
at Microsoft.CommonLanguageServerProtocol.Framework.QueueItem`1.StartRequestAsync[TRequest,TResponse](TRequest request, TRequestContext context, IMethodHandler handler, CancellationToken cancellationToken)
2026-09-14 18:59:02.592 [error] Request codeLens/resolve failed.
Message: Could not load file or assembly 'System.Threading.Channels, Version=10.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. The system cannot find the file specified.
Code: -32000
[object Object]
```

### C# LSP Trace Logs log ###

```

```

## Environment Information ##
**VSCode version**: 1.137.0
**C# Extension**: 2.140.9
**Using OmniSharp**: false

Dotnet Information
.NET SDK:
Version: 10.0.401
Commit: e34a38d2ae
Workload version: 10.0.400-manifests.b0700452
MSBuild version: 18.9.11+e34a38d2a

Runtime Environment:
OS Name: Windows
OS Version: 10.0.26200
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\10.0.401\

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.
No workload sets are installed. Run "dotnet workload restore" to install a workload set.

Host:
Version: 10.0.12
Architecture: x64
Commit: 95017c711e

.NET SDKs installed:
9.0.317 [C:\Program Files\dotnet\sdk]
10.0.401 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 8.0.30 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.31 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.19 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 10.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 8.0.30 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.31 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.19 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 10.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 8.0.30 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.31 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.19 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 10.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
DOTNET_CLI_UI_LANGUAGE [en-US]

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|
|---|---|---|---|
|atlascode|atlassian|4.0.32|atlassian.atlascode-4.0.32|
|claude-code|Anthropic|2.1.263|anthropic.claude-code-2.1.263-win32-x64|
|csdevkit|ms-dotnettools|3.20.207|ms-dotnettools.csdevkit-3.20.207-win32-x64|
|csharp|ms-dotnettools|2.140.9|ms-dotnettools.csharp-2.140.9-win32-x64|
|data-workspace-vscode|ms-mssql|0.6.3|ms-mssql.data-workspace-vscode-0.6.3|
|debugpy|ms-python|2026.6.0|ms-python.debugpy-2026.6.0-win32-x64|
|js-debug-nightly|ms-vscode|2026.9.1108|ms-vscode.js-debug-nightly-2026.9.1108|
|mssql|ms-mssql|1.45.1|ms-mssql.mssql-1.45.1|
|path-intellisense|christian-kohler|2.10.0|christian-kohler.path-intellisense-2.10.0|
|powershell|ms-vscode|2025.4.0|ms-vscode.powershell-2025.4.0|
|python|ms-python|2026.4.0|ms-python.python-2026.4.0-win32-x64|
|rainbow-csv|mechatroner|3.24.1|mechatroner.rainbow-csv-3.24.1|
|sql-bindings-vscode|ms-mssql|0.4.1|ms-mssql.sql-bindings-vscode-0.4.1|
|sql-database-projects-vscode|ms-mssql|1.7.0|ms-mssql.sql-database-projects-vscode-1.7.0|
|vscode-codeql|GitHub|1.17.8|github.vscode-codeql-1.17.8|
|vscode-dotnet-runtime|ms-dotnettools|3.1.0|ms-dotnettools.vscode-dotnet-runtime-3.1.0|
|vscode-edge-devtools|ms-edgedevtools|2.1.11|ms-edgedevtools.vscode-edge-devtools-2.1.11|
|vscode-pylance|ms-python|2026.3.1|ms-python.vscode-pylance-2026.3.1|
|vscode-python-envs|ms-python|1.36.0|ms-python.vscode-python-envs-1.36.0-win32-x64|
|vscode-yaml|redhat|1.24.0|redhat.vscode-yaml-1.24.0|;

C# Settings

|Setting|Value|
|---|---|
|preferCSharpExtension|false|
|compilerDiagnosticScope|openFiles|
|analyzerDiagnosticScope|openFiles|
|enableXamlTools|true|
|useServerGC|true|;

System Info

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i7-14700K (28 x 3418)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x10de, DEVICE=0x1ff0 [NVIDIA T1000 8GB], DRIVER_VENDOR=NVIDIA, DRIVER_VERSION=32.0.15.9672 *ACTIVE*
GPU1: VENDOR= 0x8086, DEVICE=0xa780 [Intel(R) UHD Graphics 770], DRIVER_VERSION=32.0.101.7079
GPU2: VENDOR= 0x10de, DEVICE=0x1ff0 [NVIDIA T1000 8GB], DRIVER_VERSION=32.0.15.9672
GPU3: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8875
Machine model name:
Machine model version:
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
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|63.71GB (30.49GB free)|
|Process Argv|--crash-reporter-id db343866-a0e2-485a-9348-4d8edfbd36a6|
|Screen Reader|no|
|VM|0%|

A/B Experiments

```
vsliv368:30146709
pythonvspyt551cf:31249601
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
82j33506:31327384
envsactivate1:31551504
cloudbuttont:31379625
3efgi100_wstrepl:31403338
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
c3h7c220:31478652
ge8j1254_inline_auto_hint_haiku:31490510
cp_cls_t_1081:31454832
conptydll_true:31498968
e9c30283:31461165
46204921:31447328
ei9d7968:31496641
chat:31457767
8hig5102:31480529
89g7j272:31518289
i2gc6536:31499202
52612955:31516516
ec1eg703:31520046
ddid_t:31478206
hmra_i5g22:31518061
ja75b849:31580633
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
db5d2638:31499441
jb_cp_cls_t_632:31543129
56dj4588:31512888
32d76977:31512328
ha629193:31508444
jh5f2457_c:31540921
jbcp_cls_pctr_t:31531130
cp_intellij_t_nes:31548657
jf4hg949:31526829
ahp-both-windows:31556933
ihg5j128:31534457
7g2b5551:31542111
enable_editor_pane_layout:31569726
allow-none:31555437
ac562147:31564510
c7c27ce7:31554789
1h923230:31564177
treatment-23-1:31555779
unuse_dynamic_mcp:31555281
0d8dfbc3:31570291
a1hcc538:31559322
0c1h4866:31566224
vrbsty_tr:31561058
session-archive:31558132
5b8j3302:31564601
mangle-name-control:31572633
allow-signed-out:31581176
intellij_nes_preview_t:31580086
39a5d156:31574986
2bfb8b39:31576696
unread:31581112
aw-autom-on:31582550
revealsession_treatment_7ed7e840:31582194
permission_prompt_control:1332567
ccr_pr_nudge_adoption:1319471
vsc_wsm_c:1340633
jidc7660:1370295
cfee5631:1379228
3aced641:1389836

```

Start with the workspace/symbol request shown in the logs and trace the mentioned NavigateToSearcher.cs and WorkspaceSymbolsHandler.cs entry points. First determine why the C# Dev Kit cannot load the Version 10.0.0.0 assembly; done means reproducing the scenario without the missing-assembly error, but the issue provides no reliable reproduction steps.

Written by the indexing model from the issue text.