Go to definition for .NET SDK symbols is unreliable/inconsistent

[myieye]

Type: Bug

Issue Description

The first time I select "Got to definition" for IList it takes me to the interface as I would expect. The second time and every time afterwards, it opens UInt64.cs.

If I delete AppData/Local/Temp/SymbolCache the next time will take me to IList again and the flow repeats itself.

go-to-definition-bug.mp4

Expected Behavior

I should always be taken to IList

Actual Behavior

I'm taken to unrelated code

Logs

exthost.zip

C# log

Post the output from Output-->C# here 2024-12-12 14:29:11.760 [info] Using dotnet configured on PATH 2024-12-12 14:29:11.762 [info] Dotnet path: C:\Program Files\dotnet\dotnet.exe 2024-12-12 14:29:11.762 [info] Activating C# + C# Dev Kit... 2024-12-12 14:29:14.860 [info] [stdout] {"pipeName":"\\\\.\\pipe\\d91877fd"}

2024-12-12 14:29:14.860 [info] received named pipe information from server
2024-12-12 14:29:14.861 [info] client has connected to server
2024-12-12 14:29:14.977 [info] [Info - 2:29:14 PM] [Program] Language server initialized
2024-12-12 14:29:25.942 [info] [Info - 2:29:25 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\MiniLcm.Tests\MiniLcm.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.389 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteProjectSync.Tests\FwLiteProjectSync.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.399 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwHeadless\FwHeadless.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.403 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteShared\FwLiteShared.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.406 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LcmCrdt.Tests\LcmCrdt.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.409 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexData\LexData.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.411 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FixFwData\FixFwData.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.412 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LcmCrdt\LcmCrdt.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.414 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge.Tests\FwDataMiniLcmBridge.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.419 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\Testing\Testing.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.421 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\harmony\src\SIL.Harmony\SIL.Harmony.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.493 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LfNext\LcmDebugger\LcmDebugger.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.499 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\harmony\src\SIL.Harmony.Core\SIL.Harmony.Core.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.521 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge\FwDataMiniLcmBridge.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.763 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LfClassicData\LfClassicData.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.765 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteProjectSync\FwLiteProjectSync.csproj loaded by C# Dev Kit
2024-12-12 14:29:26.908 [info] [Info - 2:29:26 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexBoxApi\LexBoxApi.csproj loaded by C# Dev Kit
2024-12-12 14:29:27.044 [info] [Info - 2:29:27 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\SyncReverseProxy\SyncReverseProxy.csproj loaded by C# Dev Kit
2024-12-12 14:29:27.193 [info] [Info - 2:29:27 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\MiniLcm\MiniLcm.csproj loaded by C# Dev Kit
2024-12-12 14:29:27.412 [info] [Info - 2:29:27 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LocalWebApp\LocalWebApp.csproj loaded by C# Dev Kit
2024-12-12 14:29:27.448 [info] [Info - 2:29:27 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteDesktop\FwLiteDesktop.csproj loaded by C# Dev Kit
2024-12-12 14:29:27.454 [info] [Info - 2:29:27 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexCore\LexCore.csproj loaded by C# Dev Kit
2024-12-12 14:31:06.493 [info] [Warn - 2:31:06 PM] [LanguageServerHost] Ignoring diagnostics request for untracked document: file:///D:/code/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/Fixtures/SyncFixture.cs
2024-12-12 14:31:06.494 [info] [Warn - 2:31:06 PM] [LanguageServerHost] Ignoring diagnostics request for untracked document: file:///D:/code/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/Fixtures/SyncFixture.cs
2024-12-12 14:31:06.494 [info] [Warn - 2:31:06 PM] [LanguageServerHost] Ignoring diagnostics request for untracked document: file:///D:/code/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/Fixtures/SyncFixture.cs
2024-12-12 14:31:06.495 [info] [Warn - 2:31:06 PM] [LanguageServerHost] Ignoring diagnostics request for untracked document: file:///D:/code/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/Fixtures/SyncFixture.cs
2024-12-12 14:31:06.495 [info] [Warn - 2:31:06 PM] [LanguageServerHost] Ignoring diagnostics request for untracked document: file:///D:/code/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/Fixtures/SyncFixture.cs
2024-12-12 14:31:06.496 [info] [Warn - 2:31:06 PM] [LanguageServerHost] Ignoring diagnostics request for untracked document: file:///D:/code/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/Fixtures/SyncFixture.cs
2024-12-12 14:37:31.173 [info] Locating .NET runtime version 8.0.10
2024-12-12 14:37:33.337 [info] Dotnet path: C:\Program Files\dotnet\dotnet.exe
2024-12-12 14:37:33.337 [info] Activating C# + C# Dev Kit...
2024-12-12 14:37:36.503 [info] [stdout] {"pipeName":"\\.\pipe\f1db2646"}

2024-12-12 14:37:36.504 [info] received named pipe information from server
2024-12-12 14:37:36.505 [info] client has connected to server
2024-12-12 14:37:36.602 [info] [Info - 2:37:36 PM] [Program] Language server initialized
2024-12-12 14:37:47.018 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexCore\LexCore.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.061 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwHeadless\FwHeadless.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.067 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LfNext\LcmDebugger\LcmDebugger.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.070 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteShared\FwLiteShared.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.072 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge\FwDataMiniLcmBridge.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.077 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteProjectSync\FwLiteProjectSync.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.079 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\MiniLcm\MiniLcm.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.088 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LcmCrdt\LcmCrdt.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.148 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LocalWebApp\LocalWebApp.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.235 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LcmCrdt.Tests\LcmCrdt.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.355 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\harmony\src\SIL.Harmony.Core\SIL.Harmony.Core.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.364 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\harmony\src\SIL.Harmony\SIL.Harmony.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.464 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteDesktop\FwLiteDesktop.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.553 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LfClassicData\LfClassicData.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.659 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\Testing\Testing.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.667 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\SyncReverseProxy\SyncReverseProxy.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.784 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexBoxApi\LexBoxApi.csproj loaded by C# Dev Kit
2024-12-12 14:37:47.902 [info] [Info - 2:37:47 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\MiniLcm.Tests\MiniLcm.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:37:48.005 [info] [Info - 2:37:48 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FixFwData\FixFwData.csproj loaded by C# Dev Kit
2024-12-12 14:37:48.095 [info] [Info - 2:37:48 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteProjectSync.Tests\FwLiteProjectSync.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:37:48.203 [info] [Info - 2:37:48 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge.Tests\FwDataMiniLcmBridge.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:37:48.535 [info] [Info - 2:37:48 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexData\LexData.csproj loaded by C# Dev Kit
2024-12-12 14:39:31.240 [info] Locating .NET runtime version 8.0.10
2024-12-12 14:39:33.390 [info] Dotnet path: C:\Program Files\dotnet\dotnet.exe
2024-12-12 14:39:33.390 [info] Activating C# + C# Dev Kit...
2024-12-12 14:39:35.995 [info] [stdout] {"pipeName":"\\.\pipe\d327cf31"}

2024-12-12 14:39:35.995 [info] received named pipe information from server
2024-12-12 14:39:35.996 [info] client has connected to server
2024-12-12 14:39:36.065 [info] [Info - 2:39:36 PM] [Program] Language server initialized
2024-12-12 14:39:45.003 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwHeadless\FwHeadless.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.012 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LcmCrdt\LcmCrdt.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.014 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge\FwDataMiniLcmBridge.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.016 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteShared\FwLiteShared.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.019 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteProjectSync\FwLiteProjectSync.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.020 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\Testing\Testing.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.021 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LfNext\LcmDebugger\LcmDebugger.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.022 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexCore\LexCore.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.026 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LcmCrdt.Tests\LcmCrdt.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.027 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\harmony\src\SIL.Harmony.Core\SIL.Harmony.Core.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.028 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\MiniLcm\MiniLcm.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.029 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\MiniLcm.Tests\MiniLcm.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.031 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge.Tests\FwDataMiniLcmBridge.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.032 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexData\LexData.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.037 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FixFwData\FixFwData.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.042 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LfClassicData\LfClassicData.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.044 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteProjectSync.Tests\FwLiteProjectSync.Tests.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.046 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\LocalWebApp\LocalWebApp.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.048 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\harmony\src\SIL.Harmony\SIL.Harmony.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.099 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\SyncReverseProxy\SyncReverseProxy.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.190 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\FwLite\FwLiteDesktop\FwLiteDesktop.csproj loaded by C# Dev Kit
2024-12-12 14:39:45.195 [info] [Info - 2:39:45 PM] [WorkspaceProjectFactoryService] Project D:\code\languageforge-lexbox\backend\LexBoxApi\LexBoxApi.csproj loaded by C# Dev Kit

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: 1.96.0
C# Extension: 2.60.26
Using OmniSharp: false

Dotnet Information

.NET SDK: Version: 9.0.100-rc.2.24474.11 Commit: 315e1305db Workload version: 9.0.100-manifests.3424025a MSBuild version: 17.12.0-preview-24473-03+fea15fbd1

Runtime Environment:
OS Name: Windows
OS Version: 10.0.22631
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.100-rc.2.24474.11\

.NET workloads installed:
[android]
Installation Source: SDK 9.0.100-rc.2, VS 17.11.35431.28
Manifest Version: 35.0.0-rc.2.152/9.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100-rc.2\microsoft.net.sdk.android\35.0.0-rc.2.152\WorkloadManifest.json
Install Type: Msi

[aspire]
Installation Source: SDK 9.0.100-rc.2, VS 17.11.35431.28
Manifest Version: 8.2.2/8.0.100
Manifest Path: C:\Program Files\dotnet\sdk-manifests\8.0.100\microsoft.net.sdk.aspire\8.2.2\WorkloadManifest.json
Install Type: Msi

[ios]
Installation Source: SDK 9.0.100-rc.2, VS 17.11.35431.28
Manifest Version: 18.0.9600-net9-rc2/9.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100-rc.2\microsoft.net.sdk.ios\18.0.9600-net9-rc2\WorkloadManifest.json
Install Type: Msi

[maccatalyst]
Installation Source: SDK 9.0.100-rc.2, VS 17.11.35431.28
Manifest Version: 18.0.9600-net9-rc2/9.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100-rc.2\microsoft.net.sdk.maccatalyst\18.0.9600-net9-rc2\WorkloadManifest.json
Install Type: Msi

[maui-windows]
Installation Source: SDK 9.0.100-rc.2, VS 17.11.35431.28
Manifest Version: 9.0.0-rc.2.24503.2/9.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100-rc.2\microsoft.net.sdk.maui\9.0.0-rc.2.24503.2\WorkloadManifest.json
Install Type: Msi

[wasm-tools]
Installation Source: SDK 9.0.100-rc.2, VS 17.11.35431.28
Manifest Version: 9.0.0-rc.2.24473.5/9.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100-rc.2\microsoft.net.workload.mono.toolchain.current\9.0.0-rc.2.24473.5\WorkloadManifest.json
Install Type: Msi

[wasm-tools-net7]
Installation Source: SDK 9.0.100-rc.2, VS 17.11.35431.28
Manifest Version: 9.0.0-rc.2.24473.5/9.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100-rc.2\microsoft.net.workload.mono.toolchain.net7\9.0.0-rc.2.24473.5\WorkloadManifest.json
Install Type: Msi

Configured to use loose manifests when installing new manifests.

Host:
Version: 9.0.0-rc.2.24473.5
Architecture: x64
Commit: 990ebf52fc

.NET SDKs installed:
6.0.428 [C:\Program Files\dotnet\sdk]
7.0.120 [C:\Program Files\dotnet\sdk]
8.0.111 [C:\Program Files\dotnet\sdk]
8.0.404 [C:\Program Files\dotnet\sdk]
9.0.100-rc.2.24474.11 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 8.0.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.0-rc.2.24474.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 6.0.15 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.0-rc.2.24473.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 6.0.15 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.11 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 9.0.0-rc.2.24474.4 [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:
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
addlocalnetreferences	RafisTatar	0.4.8	rafistatar.addlocalnetreferences-0.4.8
azure-repos	ms-vscode	0.40.0	ms-vscode.azure-repos-0.40.0
code-runner	formulahendry	0.12.2	formulahendry.code-runner-0.12.2
composer-php-vscode	DEVSENSE	1.54.16480	devsense.composer-php-vscode-1.54.16480
copilot	GitHub	1.250.0	github.copilot-1.250.0
copilot-chat	GitHub	0.23.0	github.copilot-chat-0.23.0
csdevkit	ms-dotnettools	1.15.13	ms-dotnettools.csdevkit-1.15.13-win32-x64
csharp	ms-dotnettools	2.60.26	ms-dotnettools.csharp-2.60.26-win32-x64
csharpextensions	kreativ-software	1.7.3	kreativ-software.csharpextensions-1.7.3
debugpy	ms-python	2024.14.0	ms-python.debugpy-2024.14.0-win32-x64
EditorConfig	EditorConfig	0.16.4	editorconfig.editorconfig-0.16.4
gc-excelviewer	GrapeCity	4.2.62	grapecity.gc-excelviewer-4.2.62
gitlens	eamodio	16.0.5	eamodio.gitlens-16.0.5
gitpatch	paragdiwan	0.2.1	paragdiwan.gitpatch-0.2.1
gitstash	arturock	5.2.0	arturock.gitstash-5.2.0
go	golang	0.42.1	golang.go-0.42.1
i18n-ally	lokalise	2.12.0	lokalise.i18n-ally-2.12.0
iconify	antfu	0.10.2	antfu.iconify-0.10.2
indent-rainbow	oderwat	8.3.1	oderwat.indent-rainbow-8.3.1
intelli-php-vscode	DEVSENSE	0.12.15062	devsense.intelli-php-vscode-0.12.15062-win32-x64
intellij-idea-keybindings	k--kato	1.7.3	k--kato.intellij-idea-keybindings-1.7.3
jbockle-format-files	jbockle	3.4.0	jbockle.jbockle-format-files-3.4.0
makefile-tools	ms-vscode	0.11.13	ms-vscode.makefile-tools-0.11.13
markdown-all-in-one	yzhang	3.6.2	yzhang.markdown-all-in-one-3.6.2
markdown-converter	manuth	5.2.1	manuth.markdown-converter-5.2.1
markdown-mermaid	bierner	1.27.0	bierner.markdown-mermaid-1.27.0
markdown-pdf	yzane	1.5.0	yzane.markdown-pdf-1.5.0
markdown-preview-github-styles	bierner	2.1.0	bierner.markdown-preview-github-styles-2.1.0
marp-vscode	marp-team	2.8.0	marp-team.marp-vscode-2.8.0
mongodb-vscode	mongodb	1.11.0	mongodb.mongodb-vscode-1.11.0
pdf	tomoki1207	1.2.2	tomoki1207.pdf-1.2.2
php-debug	xdebug	1.35.0	xdebug.php-debug-1.35.0
php-intellisense	zobo	1.3.3	zobo.php-intellisense-1.3.3
php-pack	xdebug	1.0.3	xdebug.php-pack-1.0.3
phptools-vscode	DEVSENSE	1.54.16480	devsense.phptools-vscode-1.54.16480-win32-x64
playwright	ms-playwright	1.1.12	ms-playwright.playwright-1.1.12
postcss	csstools	1.0.9	csstools.postcss-1.0.9
powershell	ms-vscode	2024.4.0	ms-vscode.powershell-2024.4.0
prettier-vscode	esbenp	11.0.0	esbenp.prettier-vscode-11.0.0
pretty-ts-errors	YoavBls	0.6.1	yoavbls.pretty-ts-errors-0.6.1
profiler-php-vscode	DEVSENSE	1.54.16480	devsense.profiler-php-vscode-1.54.16480
python	ms-python	2024.22.0	ms-python.python-2024.22.0-win32-x64
rainbow-csv	mechatroner	3.13.0	mechatroner.rainbow-csv-3.13.0
remote-containers	ms-vscode-remote	0.394.0	ms-vscode-remote.remote-containers-0.394.0
remote-repositories	ms-vscode	0.42.0	ms-vscode.remote-repositories-0.42.0
remote-wsl	ms-vscode-remote	0.88.5	ms-vscode-remote.remote-wsl-0.88.5
remotehub	GitHub	0.64.0	github.remotehub-0.64.0
sort-imports	amatiasq	6.3.1	amatiasq.sort-imports-6.3.1
svelte-vscode	svelte	109.3.3	svelte.svelte-vscode-109.3.3
tsl-problem-matcher	amodio	0.6.2	amodio.tsl-problem-matcher-0.6.2
twig	whatwedo	1.0.2	whatwedo.twig-1.0.2
vscode-csharp-snippets	jorgeserrano	1.1.0	jorgeserrano.vscode-csharp-snippets-1.1.0
vscode-docker	ms-azuretools	1.29.3	ms-azuretools.vscode-docker-1.29.3
vscode-dotnet-runtime	ms-dotnettools	2.2.3	ms-dotnettools.vscode-dotnet-runtime-2.2.3
vscode-eslint	dbaeumer	3.0.13	dbaeumer.vscode-eslint-3.0.13
vscode-github-actions	github	0.27.0	github.vscode-github-actions-0.27.0
vscode-graphql	GraphQL	0.12.1	graphql.vscode-graphql-0.12.1
vscode-graphql-syntax	GraphQL	1.3.8	graphql.vscode-graphql-syntax-1.3.8
vscode-html-css	ecmel	2.0.11	ecmel.vscode-html-css-2.0.11
vscode-icons	vscode-icons-team	12.9.0	vscode-icons-team.vscode-icons-12.9.0
vscode-intelephense-client	bmewburn	1.12.6	bmewburn.vscode-intelephense-client-1.12.6
vscode-json5	KatjanaKosic	1.0.1	katjanakosic.vscode-json5-1.0.1
vscode-kubernetes-tools	ms-kubernetes-tools	1.3.18	ms-kubernetes-tools.vscode-kubernetes-tools-1.3.18
vscode-postgres	ckolkman	1.4.3	ckolkman.vscode-postgres-1.4.3
vscode-pull-request-github	GitHub	0.102.0	github.vscode-pull-request-github-0.102.0
vscode-pylance	ms-python	2024.12.1	ms-python.vscode-pylance-2024.12.1
vscode-speech	ms-vscode	0.12.1	ms-vscode.vscode-speech-0.12.1-win32-x64
vscode-tailwindcss	bradlc	0.12.16	bradlc.vscode-tailwindcss-0.12.16
vscode-task	task	0.3.2	task.vscode-task-0.3.2
vscode-wasm	dtsvet	1.4.1	dtsvet.vscode-wasm-1.4.1
vscode-yaml	redhat	1.15.0	redhat.vscode-yaml-1.15.0
vsliveshare	ms-vsliveshare	1.0.5941	ms-vsliveshare.vsliveshare-1.0.5941
vsliveshare-pack	ms-vsliveshare	0.4.0	ms-vsliveshare.vsliveshare-pack-0.4.0
xml	DotJoshJohnson	2.5.1	dotjoshjohnson.xml-2.5.1

Extension version: 2.60.26
VS Code version: Code 1.96.0 (138f619c86f1199955d53b4166bef66ef252935c, 2024-12-11T02:29:09.626Z)
OS version: Windows_NT x64 10.0.22631
Modes:

System Info

Item	Value
CPUs	AMD Ryzen 7 5825U with Radeon Graphics (16 x 1996)
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)	22.83GB (6.72GB free)
Process Argv	--crash-reporter-id afb35fb5-5fae-4774-b714-3eb60679b7c8
Screen Reader	no
VM	0%

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
vswsl492cf:30256860
vscod805:30301674
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
a9j8j154:30646983
962ge761:30959799
pythonnoceb:30805159
pythonmypyd1:30879173
h48ei257:31000450
pythontbext0:30879054
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
dvdeprecation:31068756
dwnewjupyter:31046869
2f103344:31071589
nativerepl2:31139839
pythonrstrctxt:31112756
nativeloc1:31192215
cf971741:31144450
iacca1:31171482
notype1cf:31157160
5fd0e150:31155592
dwcopilot:31170013
stablechunks:31184530

[myieye]

The problem goes away when I disable the C# Dev Kit extension.

Some potentially relevant settings as they have been configured both with and without C# Dev Kit:

[breyed]

Possibly related: The C# extension reports this error in its log for a dotnet new console project:

2024-12-18 12:20:48.946 [info] [Error - 12:20:48 PM] [LanguageServerProjectSystem] Error while loading path-to-project/csharp.csproj: The specified task executable location "/usr/local/share/dotnet" is invalid.

[breyed]

I find that when C# Dev Kit is enabled, the class and method symbol coloring appears when VS Code starts, but after a second, the coloring switches to that of unknown symbols. Additionally, Intellisense doesn't work. For example, typing Console. doesn't provide a list of methods. With C# Dev Kit is disabled, Intellisense works (although the C# extension still reports the error shown in the previous comment).

I'm using up-to-date release versions of VS Code, extensions, and the .NET SDK (SDK 9.0.101). This reproduces on a basic dotnet new console project.