Cannot run Blazor Wasm debugging after closing the previous session

[jacob-l]

Type: Bug

Issue Description

I am trying to debug a newly created Blazor WebAssembly application. I created the application via dotnet new blazorwasm. The launch.json was generated by the C# extension. When I try to debug the application, it works fine the first time. However, subsequent attempts to run it fail due to port conflicts: "Failed to bind to address http://127.0.0.1:5293: address already in use."

Steps to Reproduce

1. Create an empty Blazor WebAssembly application using:

   dotnet new blazorwasm
   

2. Generate launch.json with the C# extension.
   • My current launch.json:

     {
         "version": "0.2.0",
         "configurations": [
             {
                 "name": "Launch and Debug Standalone Blazor WebAssembly App",
                 "type": "blazorwasm",
                 "request": "launch",
                 "cwd": "${workspaceFolder}"
             }
         ]
     }

3. Run debugging. The browser is opened.
4. Close the browser and stop debugging.
5. Try to start debugging again.

Expected Behavior

The application should successfully start debugging again without port conflicts after stopping and restarting the session.

Actual Behavior

The application fails to start debugging after the initial session, reporting that the port is already in use.

Logs

I will attach a zip file.

C# log

2024-12-07 13:17:05.332 [info] Using dotnet configured on PATH
2024-12-07 13:17:05.333 [info] Dotnet path: /usr/local/share/dotnet/dotnet
2024-12-07 13:17:05.333 [info] Activating C# standalone...
2024-12-07 13:17:08.022 [info] [stdout] {"pipeName":"/var/folders/lr/q1frb3cx33b0y4gyw8fs7hn40000gn/T/245b8346.sock"}

2024-12-07 13:17:08.022 [info] received named pipe information from server
2024-12-07 13:17:08.023 [info] client has connected to server
2024-12-07 13:17:08.197 [info] [Info - 13:17:08] [Program] Language server initialized
2024-12-07 13:17:13.056 [info] [Info - 13:17:13] [LanguageServerProjectSystem] Successfully completed load of /Users/user/VS Code Test Apps/blazorwasm1/blazorwasm1.csproj
2024-12-07 13:17:13.061 [info] [Info - 13:17:13] [LanguageServerProjectSystem] Completed (re)load of all projects in 00:00:03.9894763
2024-12-07 13:22:24.766 [info] [LanguageServerHost] [02:22:24.765][End]roslyn/updateLogLevel
2024-12-07 13:23:12.555 [info] [LanguageServerHost] [02:23:12.540][Start]textDocument/didClose
2024-12-07 13:23:12.556 [info] [LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Home.razor__virtual.cs
2024-12-07 13:23:12.556 [info] [LanguageServerHost] [02:23:12.546][End]textDocument/didClose
2024-12-07 13:23:12.557 [info] [LanguageServerHost] [02:23:12.552][Start]textDocument/didClose
2024-12-07 13:23:12.557 [info] [LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Counter.razor__virtual.cs
2024-12-07 13:23:12.557 [info] [LanguageServerHost] [02:23:12.554][End]textDocument/didClose
2024-12-07 13:23:12.557 [info] [LanguageServerHost] [02:23:12.554][Start]textDocument/didClose
2024-12-07 13:23:12.558 [info] [LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Weather.razor__virtual.cs
2024-12-07 13:23:12.558 [info] [LanguageServerHost] [02:23:12.554][End]textDocument/didClose
2024-12-07 13:23:12.558 [info] [LanguageServerHost] [02:23:12.554][Start]textDocument/didClose
2024-12-07 13:23:12.558 [info] [LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/_Imports.razor__virtual.cs
2024-12-07 13:23:12.558 [info] [LanguageServerHost] [02:23:12.555][End]textDocument/didClose
2024-12-07 13:23:12.558 [info] [LanguageServerHost] [02:23:12.555][Start]textDocument/didClose
2024-12-07 13:23:12.558 [info] [LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Layout/MainLayout.razor__virtual.cs
2024-12-07 13:23:12.558 [info] [LanguageServerHost] [02:23:12.555][End]textDocument/didClose
2024-12-07 13:23:12.559 [info] [LanguageServerHost] [02:23:12.555][Start]textDocument/didClose
2024-12-07 13:23:12.559 [info] [LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Layout/NavMenu.razor__virtual.cs
2024-12-07 13:23:12.559 [info] [LanguageServerHost] [02:23:12.555][End]textDocument/didClose
2024-12-07 13:23:12.559 [info] [LanguageServerHost] [02:23:12.555][Start]textDocument/didClose
2024-12-07 13:23:12.559 [info] [LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/App.razor__virtual.cs
2024-12-07 13:23:12.560 [info] [LanguageServerHost] [02:23:12.555][End]textDocument/didClose
2024-12-07 13:23:12.641 [info] [LanguageServerHost] Closing workspace/diagnostics request for HotReloadDiagnostics
2024-12-07 13:23:12.642 [info] [LanguageServerHost] Closing workspace/diagnostics request for WorkspaceDocumentsAndProject
2024-12-07 13:23:12.642 [info] [LanguageServerHost] Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.Public.PublicWorkspacePullDiagnosticsHandler finished getting diagnostics
2024-12-07 13:23:12.642 [info] [LanguageServerHost] Closing workspace/diagnostics request for enc
2024-12-07 13:23:12.642 [info] [LanguageServerHost] Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.Public.PublicWorkspacePullDiagnosticsHandler finished getting diagnostics
2024-12-07 13:23:12.643 [info] [LanguageServerHost] [02:23:12.641][End]workspace/diagnostic
2024-12-07 13:23:12.643 [info] [LanguageServerHost] [02:23:12.641][End]workspace/diagnostic
2024-12-07 13:23:12.643 [info] [LanguageServerHost] Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.Public.PublicWorkspacePullDiagnosticsHandler finished getting diagnostics
2024-12-07 13:23:12.643 [info] [LanguageServerHost] [02:23:12.641][End]workspace/diagnostic
2024-12-07 13:23:13.065 [info] [RazorWorkspaceListener] Serializing information for (ProjectId, #a9bb344c-6f7c-4c67-a4a5-305afe68c4e5 - /Users/user/VS Code Test Apps/blazorwasm1/blazorwasm1.csproj ($net9.0))
2024-12-07 13:23:14.709 [info] [LanguageServerHost] Request did not contain a textDocument, using default language handler
2024-12-07 13:23:14.710 [info] [LanguageServerHost] Request did not contain a textDocument, using default language handler
2024-12-07 13:23:14.710 [info] [LanguageServerHost] Request did not contain a textDocument, using default language handler
2024-12-07 13:23:14.710 [info] [LanguageServerHost] [02:23:14.708][Start]workspace/diagnostic
2024-12-07 13:23:14.710 [info] [LanguageServerHost] PublicWorkspacePullDiagnosticsHandler(category: WorkspaceDocumentsAndProject) started getting diagnostics
2024-12-07 13:23:14.710 [info] [LanguageServerHost] previousResults.Length=0
2024-12-07 13:23:14.711 [info] [LanguageServerHost] Processing 0 documents
2024-12-07 13:23:14.711 [info] [LanguageServerHost] [02:23:14.708][Start]workspace/diagnostic
2024-12-07 13:23:14.711 [info] [LanguageServerHost] PublicWorkspacePullDiagnosticsHandler(category: HotReloadDiagnostics) started getting diagnostics
2024-12-07 13:23:14.711 [info] [LanguageServerHost] previousResults.Length=0
2024-12-07 13:23:14.711 [info] [LanguageServerHost] Processing 0 documents
2024-12-07 13:23:14.711 [info] [LanguageServerHost] [02:23:14.709][Start]workspace/diagnostic
2024-12-07 13:23:14.712 [info] [LanguageServerHost] PublicWorkspacePullDiagnosticsHandler(category: enc) started getting diagnostics
2024-12-07 13:23:14.712 [info] [LanguageServerHost] previousResults.Length=0
2024-12-07 13:23:14.712 [info] [LanguageServerHost] Processing 0 documents
2024-12-07 13:28:42.150 [info] Using dotnet configured on PATH
2024-12-07 13:32:16.780 [info] [LanguageServerHost] No request parameters given, using default language handler
2024-12-07 13:32:16.783 [info] [LanguageServerHost] [02:32:16.780][Start]workspace/buildOnlyDiagnosticIds
2024-12-07 13:32:16.784 [info] [LanguageServerHost] [02:32:16.783][End]workspace/buildOnlyDiagnosticIds

C# LSP Trace Logs

[Trace - 13:22:24] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:22:24.765][End]roslyn/updateLogLevel"
}

[Trace - 13:23:12] Sending notification 'textDocument/didClose'.
Params: {
"textDocument": {
"uri": "virtualCSharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Home.razor__virtual.cs"
}
}

[Trace - 13:23:12] Sending notification 'textDocument/didClose'.
Params: {
"textDocument": {
"uri": "virtualCSharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Counter.razor__virtual.cs"
}
}

[Trace - 13:23:12] Sending notification 'textDocument/didClose'.
Params: {
"textDocument": {
"uri": "virtualCSharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Weather.razor__virtual.cs"
}
}

[Trace - 13:23:12] Sending notification 'textDocument/didClose'.
Params: {
"textDocument": {
"uri": "virtualCSharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/_Imports.razor__virtual.cs"
}
}

[Trace - 13:23:12] Sending notification 'textDocument/didClose'.
Params: {
"textDocument": {
"uri": "virtualCSharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Layout/MainLayout.razor__virtual.cs"
}
}

[Trace - 13:23:12] Sending notification 'textDocument/didClose'.
Params: {
"textDocument": {
"uri": "virtualCSharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Layout/NavMenu.razor__virtual.cs"
}
}

[Trace - 13:23:12] Sending notification 'textDocument/didClose'.
Params: {
"textDocument": {
"uri": "virtualCSharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/App.razor__virtual.cs"
}
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.540][Start]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Home.razor__virtual.cs"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.546][End]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.552][Start]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Counter.razor__virtual.cs"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.554][End]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.554][Start]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Pages/Weather.razor__virtual.cs"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.554][End]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.554][Start]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/_Imports.razor__virtual.cs"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.555][End]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.555][Start]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Layout/MainLayout.razor__virtual.cs"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.555][End]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.555][Start]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/Layout/NavMenu.razor__virtual.cs"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.555][End]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.555][Start]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] didClose for virtualcsharp-razor:///Users/user/VS Code Test Apps/blazorwasm1/App.razor__virtual.cs"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.555][End]textDocument/didClose"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Closing workspace/diagnostics request for HotReloadDiagnostics"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Closing workspace/diagnostics request for WorkspaceDocumentsAndProject"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.Public.PublicWorkspacePullDiagnosticsHandler finished getting diagnostics"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Closing workspace/diagnostics request for enc"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.Public.PublicWorkspacePullDiagnosticsHandler finished getting diagnostics"
}

[Trace - 13:23:12] Received response 'workspace/diagnostic - (85)' in 176130ms.
Result: {
"items": []
}

[Trace - 13:23:12] Received response 'workspace/diagnostic - (86)' in 176130ms.
Result: {
"items": []
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.641][End]workspace/diagnostic"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.641][End]workspace/diagnostic"
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Microsoft.CodeAnalysis.LanguageServer.Handler.Diagnostics.Public.PublicWorkspacePullDiagnosticsHandler finished getting diagnostics"
}

[Trace - 13:23:12] Received response 'workspace/diagnostic - (84)' in 176131ms.
Result: {
"items": []
}

[Trace - 13:23:12] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:12.641][End]workspace/diagnostic"
}

[Trace - 13:23:13] Received notification 'window/logMessage'.
Params: {
"type": 4,
"message": "[RazorWorkspaceListener] Serializing information for (ProjectId, #a9bb344c-6f7c-4c67-a4a5-305afe68c4e5 - /Users/user/VS Code Test Apps/blazorwasm1/blazorwasm1.csproj ($net9.0))"
}

[Trace - 13:23:14] Sending request 'workspace/diagnostic - (89)'.
Params: {
"identifier": "enc",
"previousResultIds": [],
"partialResultToken": "255ba741-649a-4b81-9d3b-714dbca8a66a"
}

[Trace - 13:23:14] Sending request 'workspace/diagnostic - (90)'.
Params: {
"identifier": "HotReloadDiagnostics",
"previousResultIds": [],
"partialResultToken": "6aac1bba-2162-445b-b8d4-ca6d66565daf"
}

[Trace - 13:23:14] Sending request 'workspace/diagnostic - (91)'.
Params: {
"identifier": "WorkspaceDocumentsAndProject",
"previousResultIds": [],
"partialResultToken": "8527e187-a498-429e-b7a9-546ea7a90544"
}

[Trace - 13:23:14] Received request 'workspace/codeLens/refresh - (37)'.
Params: []

[Trace - 13:23:14] Sending response 'workspace/codeLens/refresh - (37)'. Processing request took 0ms
No result returned.

[Trace - 13:23:14] Received request 'workspace/diagnostic/refresh - (38)'.
Params: []

[Trace - 13:23:14] Sending response 'workspace/diagnostic/refresh - (38)'. Processing request took 0ms
No result returned.

[Trace - 13:23:14] Received request 'workspace/semanticTokens/refresh - (39)'.
Params: []

[Trace - 13:23:14] Sending response 'workspace/semanticTokens/refresh - (39)'. Processing request took 1ms
No result returned.

[Trace - 13:23:14] Received request 'workspace/inlayHint/refresh - (40)'.
Params: []

[Trace - 13:23:14] Sending response 'workspace/inlayHint/refresh - (40)'. Processing request took 0ms
No result returned.

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Request did not contain a textDocument, using default language handler"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Request did not contain a textDocument, using default language handler"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Request did not contain a textDocument, using default language handler"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:14.708][Start]workspace/diagnostic"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] PublicWorkspacePullDiagnosticsHandler(category: WorkspaceDocumentsAndProject) started getting diagnostics"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] previousResults.Length=0"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Processing 0 documents"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:14.708][Start]workspace/diagnostic"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] PublicWorkspacePullDiagnosticsHandler(category: HotReloadDiagnostics) started getting diagnostics"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] previousResults.Length=0"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Processing 0 documents"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:23:14.709][Start]workspace/diagnostic"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] PublicWorkspacePullDiagnosticsHandler(category: enc) started getting diagnostics"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] previousResults.Length=0"
}

[Trace - 13:23:14] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] Processing 0 documents"
}

[Trace - 13:32:16] Sending request 'workspace/buildOnlyDiagnosticIds - (92)'.
[Trace - 13:32:16] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] No request parameters given, using default language handler"
}

[Trace - 13:32:16] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:32:16.780][Start]workspace/buildOnlyDiagnosticIds"
}

[Trace - 13:32:16] Received response 'workspace/buildOnlyDiagnosticIds - (92)' in 5ms.
Result: {
"ids": [
"CS1607",
"CS0169",
"CS0414",
"CS0067",
"CS0649",
"CS0656",
"CS0518",
"CS5001",
"CS0028",
"CS0017",
"CS7022",
"CS1556",
"CS0402",
"CS1558",
"CS1555",
"CS8892",
"CS0148",
"CS8078",
"CS7038",
"CS0204",
"CS0570",
"CS8004",
"CS8006",
"CS8005",
"CS8008",
"CS4007",
"CS8178",
"CS4013",
"CS1969",
"CS9026",
"CS9068",
"CS9144",
"CS9148",
"CS9149",
"CS9153",
"CS9154",
"CS9155",
"CS9156",
"CS9158",
"CS9159",
"CS9160",
"CS9163",
"CS9177",
"CS9178",
"CS9207",
"CS8419",
"CS8420",
"CS9217",
"CA1016",
"CA1014",
"CA1017",
"CA1017",
"CA1724",
"CA1724",
"CA1501",
"CA1502",
"CA1505",
"CA1506",
"CA1509",
"CA1852",
"CA5360",
"CA5399",
"CA5400",
"CA5380",
"CA5381",
"CA5367",
"CA5401",
"CA5402",
"CA2301",
"CA2302",
"CA2321",
"CA2322",
"CA2329",
"CA2330",
"CA2311",
"CA2312",
"CA2327",
"CA2328",
"CA5387",
"CA5388",
"CA5362",
"CA5396",
"CA5391",
"CA5395",
"CA5382",
"CA5383",
"CA1812"
]
}

[Trace - 13:32:16] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:32:16.783][End]workspace/buildOnlyDiagnosticIds"
}

[Trace - 13:32:56] Sending request 'workspace/buildOnlyDiagnosticIds - (93)'.
[Trace - 13:32:56] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] No request parameters given, using default language handler"
}

[Trace - 13:32:56] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:32:56.616][Start]workspace/buildOnlyDiagnosticIds"
}

[Trace - 13:32:56] Received response 'workspace/buildOnlyDiagnosticIds - (93)' in 31ms.
Result: {
"ids": [
"CS1607",
"CS0169",
"CS0414",
"CS0067",
"CS0649",
"CS0656",
"CS0518",
"CS5001",
"CS0028",
"CS0017",
"CS7022",
"CS1556",
"CS0402",
"CS1558",
"CS1555",
"CS8892",
"CS0148",
"CS8078",
"CS7038",
"CS0204",
"CS0570",
"CS8004",
"CS8006",
"CS8005",
"CS8008",
"CS4007",
"CS8178",
"CS4013",
"CS1969",
"CS9026",
"CS9068",
"CS9144",
"CS9148",
"CS9149",
"CS9153",
"CS9154",
"CS9155",
"CS9156",
"CS9158",
"CS9159",
"CS9160",
"CS9163",
"CS9177",
"CS9178",
"CS9207",
"CS8419",
"CS8420",
"CS9217",
"CA1016",
"CA1014",
"CA1017",
"CA1017",
"CA1724",
"CA1724",
"CA1501",
"CA1502",
"CA1505",
"CA1506",
"CA1509",
"CA1852",
"CA5360",
"CA5399",
"CA5400",
"CA5380",
"CA5381",
"CA5367",
"CA5401",
"CA5402",
"CA2301",
"CA2302",
"CA2321",
"CA2322",
"CA2329",
"CA2330",
"CA2311",
"CA2312",
"CA2327",
"CA2328",
"CA5387",
"CA5388",
"CA5362",
"CA5396",
"CA5391",
"CA5395",
"CA5382",
"CA5383",
"CA1812"
]
}

[Trace - 13:32:56] Received notification 'window/logMessage'.
Params: {
"type": 5,
"message": "[LanguageServerHost] [02:32:56.617][End]workspace/buildOnlyDiagnosticIds"
}

Environment information

VSCode version: 1.95.3
C# Extension: 2.55.29
Using OmniSharp: false

Dotnet Information

.NET SDK: Version: 9.0.101 Commit: eedb237549 Workload version: 9.0.100-manifests.4a280210 MSBuild version: 17.12.12+1cce77968

Runtime Environment:
OS Name: Mac OS X
OS Version: 12.7
OS Platform: Darwin
RID: osx-x64
Base Path: /usr/local/share/dotnet/sdk/9.0.101/

.NET workloads installed:
[wasm-tools]
Installation Source: SDK 9.0.100
Manifest Version: 9.0.0/9.0.100
Manifest Path: /usr/local/share/dotnet/sdk-manifests/9.0.100/microsoft.net.workload.mono.toolchain.current/9.0.0/WorkloadManifest.json
Install Type: FileBased

Configured to use loose manifests when installing new manifests.

Host:
Version: 9.0.0
Architecture: x64
Commit: 9d5a6a9aa4

.NET SDKs installed:
9.0.100 [/usr/local/share/dotnet/sdk]
9.0.101 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 9.0.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 9.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

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

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

Visual Studio Code Extensions

Extension	Author	Version	Folder Name
csharp	ms-dotnettools	2.55.29	ms-dotnettools.csharp-2.55.29-darwin-x64
extension-test-runner	ms-vscode	0.0.12	ms-vscode.extension-test-runner-0.0.12
vscode-dotnet-runtime	ms-dotnettools	2.2.3	ms-dotnettools.vscode-dotnet-runtime-2.2.3
vscode-eslint	dbaeumer	3.0.10	dbaeumer.vscode-eslint-3.0.10

Extension version: 2.55.29
VS Code version: Code 1.95.3 (Universal) (f1a4fb101478ce6ec82fe9627c43efbf9e98c813, 2024-11-13T14:50:04.152Z)
OS version: Darwin x64 21.6.0
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz (4 x 2304)
GPU Status	2d_canvas: unavailable_software canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: disabled_software multiple_raster_threads: enabled_on opengl: disabled_off rasterization: disabled_software raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: disabled_software video_encode: disabled_software webgl: unavailable_software webgl2: unavailable_software webgpu: unavailable_software webnn: unavailable_software
Load (avg)	1, 2, 2
Memory (System)	16.00GB (7.00GB free)
Process Argv	--crash-reporter-id 09867b75-744f-4a21-80bf-b646f1d3c70f
Screen Reader	no
VM	50%

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805:30301674
binariesv615:30325510
vsaa593cf:30376535
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
a9j8j154:30646983
962ge761:30959799
pythonnoceb:30805159
pythonmypyd1:30879173
2e7ec940:31000449
pythontbext0:30879054
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
dvdeprecation:31068756
dwnewjupytercf:31046870
nativerepl2:31139839
pythonrstrctxt:31112756
nativeloc2:31192216
cf971741:31144450
iacca1:31171482
notype1:31157159
5fd0e150:31155592
dwcopilot:31170013
stablechunks:31184530

[C#.log.zip](https://github.com/user-attachments/files/18045935/C.log.zip)

[jacob-l]

C#.log.zip

[phil-allen-msft]

The customer report indicates the port is still in use, which is typically a process still running but expected to have stopped.

[pkamphuis]

I have the same issue on OSX. I noticed that when I stop debugging by closing the the debug sessions in vscode, I start the next debug session normally. If I however close chrome before stopping the debug sessions the next session fails to start the Blazor web assembly. (empty chrome, followed by a timeout after 30 seconds)

[LittleLittleCloud]

@jacob-l Are you using chrome or edge as your debugger browser

Can't reproduce it on edge|chrome + windows, it's probably a macos-only bug.

[jacob-l]

@LittleLittleCloud , I tried with edge and with chrome. I confirm, it is a macos-only bug.