The hintName 'xyz' of the added source file must be unique within a generator

[NatanVinicius]

Type: Bug

Issue Description

Steps to Reproduce

Expected Behavior

Actual Behavior

Extension version: 2.140.9
VS Code version: Code 1.131.0 (e4c7e7b1d6d060162f4aa7f8225271b67ce1df75, 2026-07-28T10:51:25Z)
OS version: Windows_NT x64 10.0.26200
Modes:

Logs

C# log

Details

2026-08-24 14:22:08.566 [info] Locating .NET runtime version 10.0.5
2026-08-24 14:22:10.116 [info] Dotnet path: C:\Program Files\dotnet\dotnet.exe
2026-08-24 14:22:10.116 [info] Activating C# + C# Dev Kit...
2026-08-24 14:22:10.853 [info] info: Program[0]
2026-08-24 14:22:10.854 [info]       Server started with process ID 19924
2026-08-24 14:22:11.963 [info] [Program] Language server initialized
2026-08-24 14:22:11.978 [info] [Program] Monitoring client process 22380 for exit
2026-08-24 14:22:13.250 [info] [initialized] [Microsoft.CodeAnalysis.LanguageServer.FileBasedPrograms.FileBasedProgramsEntryPointDiscovery] Finished discovery in 'c:\Dev\Projects\Dev Keyence\Projects\A2-Mahle-App' in 28 milliseconds
2026-08-24 14:22:36.772 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project C:\Dev\Projects\Dev Keyence\Projects\A2-Mahle-App\src\A2-Mahle-App.Infrastructure\A2-Mahle-App.Infrastructure.csproj loaded by C# Dev Kit
2026-08-24 14:22:36.799 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project C:\Dev\Projects\Dev Keyence\Projects\A2-Mahle-App\src\A2-Mahle-App.Client\A2-Mahle-App.Client.csproj loaded by C# Dev Kit
2026-08-24 14:22:36.865 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project C:\Dev\Projects\Dev Keyence\Projects\A2-Mahle-App\src\A2-Mahle-App.Application\A2-Mahle-App.Application.csproj loaded by C# Dev Kit
2026-08-24 14:22:37.415 [info] [serviceBroker/connect] [WorkspaceProjectFactoryService] Project C:\Dev\Projects\Dev Keyence\Projects\A2-Mahle-App\src\A2-Mahle-App.Domain\A2-Mahle-App.Domain.csproj loaded by C# Dev Kit
2026-08-24 15:16:17.485 [error] Request textDocument/documentSymbol failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:17.496 [error] Request textDocument/inlayHint failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:17.499 [error] Request textDocument/codeAction failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:17.502 [error] Request textDocument/diagnostic failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:17.502 [error] Document pull failed for text document file:///c%3A/Dev/Projects/Dev%20Keyence/Projects/A2-Mahle-App/src/A2-Mahle-App.Client/Components/Layout/MainLayout.razor
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:17.516 [error] Request textDocument/codeAction failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:17.703 [error] Request textDocument/codeLens failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:17.706 [error] Request textDocument/codeAction failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:17.739 [error] Request textDocument/documentSymbol failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:19.435 [error] Request textDocument/diagnostic failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:19.435 [error] Document pull failed for text document file:///c%3A/Dev/Projects/Dev%20Keyence/Projects/A2-Mahle-App/src/A2-Mahle-App.Client/Components/Layout/Header/Header.razor
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:19.687 [error] Request textDocument/codeLens failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:29.185 [error] Request textDocument/documentHighlight failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:29.387 [error] Request textDocument/codeLens failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:35.993 [error] Request textDocument/codeLens failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Routes_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:38.733 [error] Request textDocument/inlayHint failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Layout/MainLayout_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Layout/MainLayout_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:38.954 [error] Request textDocument/codeLens failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Layout/MainLayout_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Layout/MainLayout_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:39.052 [error] Request textDocument/documentSymbol failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Layout/MainLayout_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Layout/MainLayout_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]
2026-08-24 15:16:39.055 [error] Request textDocument/documentSymbol failed.
  Message: Razor source generator did not produce a host output for project 'A2-Mahle-App.Client (net10.0-windows10.0.19041.0)': warning CS8785: Generator 'RazorSourceGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'Components/Layout/MainLayout_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')'.
System.ArgumentException: The hintName 'Components/Layout/MainLayout_razor.g.cs' of the added source file must be unique within a generator. (Parameter 'hintName')
   at Microsoft.CodeAnalysis.AdditionalSourcesCollection.Add(String hintName, SourceText source) in /_/src/Compilers/Core/Portable/SourceGeneration/AdditionalSourcesCollection.cs:line 78
   at Microsoft.CodeAnalysis.SourceOutputNode`1.AppendOutputs(IncrementalExecutionContext context, CancellationToken cancellationToken) in /_/src/Compilers/Core/Portable/SourceGeneration/Nodes/SourceOutputNode.cs:line 102
-----

  Code: -32000 
[object Object]

C# LSP Trace Logs log

Details

Environment Information

VSCode version: 1.131.0
C# Extension: 2.140.9
Using OmniSharp: false

Dotnet Information

.NET SDK: Version: 10.0.400 Commit: 14fbf8d527 Workload version: 10.0.400-manifests.7f3d6568 MSBuild version: 18.9.6+14fbf8d52

Runtime Environment:
OS Name: Windows
OS Version: 10.0.26200
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\10.0.400\

.NET workloads installed:
[maui-windows]
Installation Source: VS 18.10.12113.136
Manifest Version: 10.0.20/10.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\10.0.100\microsoft.net.sdk.maui\10.0.20\WorkloadManifest.json
Install Type: Msi

[maccatalyst]
Installation Source: VS 18.10.12113.136
Manifest Version: 26.5.10315/10.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\10.0.100\microsoft.net.sdk.maccatalyst\26.5.10315\WorkloadManifest.json
Install Type: Msi

[ios]
Installation Source: VS 18.10.12113.136
Manifest Version: 26.5.10315/10.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\10.0.100\microsoft.net.sdk.ios\26.5.10315\WorkloadManifest.json
Install Type: Msi

[android]
Installation Source: VS 18.10.12113.136
Manifest Version: 36.1.69/10.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\10.0.100\microsoft.net.sdk.android\36.1.69\WorkloadManifest.json
Install Type: Msi

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: 10.0.11
Architecture: x64
Commit: e2f47b0110

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

.NET runtimes installed:
Microsoft.AspNetCore.App 10.0.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 10.0.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 10.0.11 [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
blazor-snippet-pack	adrianwilczynski	2.6.1	adrianwilczynski.blazor-snippet-pack-2.6.1
csdevkit	ms-dotnettools	3.20.199	ms-dotnettools.csdevkit-3.20.199-win32-x64
csharp	ms-dotnettools	2.140.9	ms-dotnettools.csharp-2.140.9-win32-x64
markdown-pdf	yzane	2.2.0	yzane.markdown-pdf-2.2.0
powershell	ms-vscode	2025.4.0	ms-vscode.powershell-2025.4.0
vscode-dotnet-runtime	ms-dotnettools	3.1.0	ms-dotnettools.vscode-dotnet-runtime-3.1.0
vscode-icons	vscode-icons-team	12.19.0	vscode-icons-team.vscode-icons-12.19.0
vscode-tailwindcss	bradlc	0.16.0	bradlc.vscode-tailwindcss-0.16.0
vscode-theme-onedark	akamud	2.3.0	akamud.vscode-theme-onedark-2.3.0

C# Settings

Setting	Value
preferCSharpExtension	false
compilerDiagnosticScope	openFiles
analyzerDiagnosticScope	openFiles
enableXamlTools	true
useServerGC	true

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-10210U CPU @ 1.60GHz (8 x 2112)
GPU Status	2d_canvas: enabled GPU0: VENDOR= 0x8086, DEVICE=0x9b41 [Intel(R) UHD Graphics], DRIVER_VENDOR=Intel, DRIVER_VERSION=30.0.100.9864 ACTIVE GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8972 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)	11.84GB (0.91GB free)
Process Argv	--crash-reporter-id a8cc5e94-8c1b-4221-9f56-d76357224443
Screen Reader	no
VM	0%

A/B Experiments

vsliv368:30146709
vswsl492:30256859
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
56b7f661:31457055
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
8hhj4413:31478653
cp_cls_c_1081:31454833
conptydll_true:31498968
e9c30283:31461165
test_treatment2:31471001
46204921:31447328
capico_axe_098a3278:31555651
ei9d7968:31496641
chat:31457767
8hig5102:31480529
89g7j272:31518289
i2gc6536:31499202
52612955:31516516
ghj88844:31499326
ddid_c:31478207
hmra_i5g22:31518061
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
db5d2638:31499441
jb_cp_cls_t_632:31543129
748c7209:31512887
32d76977:31512328
ha629193:31508444
a1ije391_t:31540920
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31548657
jf4hg949:31526829
ahp-both-windows:31556933
sessions_5:31532894
ihg5j128:31534457
f412h606:31551416
7g2b5551:31542111
nes-ex-cf-euporie-03:31542868
enable_editor_pane_layout:31569726
allow-none:31555437
6i51c363:31551401
36h42362:31564511
c7c27ce7:31554789
1h923230:31564177
0dg73464:31554319
treatment-23-1:31555779
unuse_dynamic_mcp:31555281
session-archive:31558132
5b8j3302:31564601
mangle-name-treatment:31570928

[dibarbet]

Thanks for the report. This matches #9211 and was fixed in C# extension v2.143.x or later. This report uses v2.140.9, so please update to a current C# extension release.