[dotnet watch] Cannot open project Lib.fsproj because extension fsproj is not associated with a language

[carlossanlop]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=932408
Build error leg or test failing: dotnet-sdk-public-ci

Error Message

{
  "ErrorMessage" : "because the file extension '.fsproj' is not associated with a language",
  "BuildRetry" : false,
  "ExcludeConsoleLog" : false
}

• PR: [ApiDiff] Update symbol filtering code to be able to load a list of strings or a list of files #46255
• Queue: FullFramework: windows (x64)
• Job result: https://dev.azure.com/dnceng-public/public/_build/results?buildId=932408&view=logs&j=2709a726-7db6-5829-ca7b-958b9d664f9e&t=9c6bf218-1bed-58a8-ccb2-7aefc7e3994e
• Log file: https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-sdk-refs-pull-46255-merge-f03a79adaa674a1187/dotnet-watch.Tests.dll.1/1/console.1a860fa0.log?helixlogtype=result
• Output:

 dotnet watch ⚠ msbuild: [Failure] Cannot open project 
'C:\h\w\B34E099A\t\dotnetSdkTests\geksol2n.pb2\RenameSourceF---5F6BBE1E\FSharp\Lib.fsproj' 
because the file extension '.fsproj' is not associated with a language.

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=932408
Error message validated: [because the file extension '.fsproj' is not associated with a language]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 1/28/2025 10:53:09 PM UTC

Report

Build	Definition	Step Name	Console log	Pull Request
2732227	dotnet-sdk	Run dotnet-format on dotnet/aspnetcore AspNetCore.sln	Log	#50989

Build	Definition	Test	Pull Request
2732403	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#51011
2732285	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50939
2732284	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#51000
2731748	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50943
1070309	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49326
1069918	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49444
2731715	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50938
1069692	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49421
1068620	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49408
1068007	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49389
1067512	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49374
1067583	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49393
2729237	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50855
1066921	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49375
1066696	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49374
1065747	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49290
1065794	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49357
1065706	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#49352
1065782	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49288
1065766	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49306
1065689	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49329
1065749	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49356
1065631	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49118
1064368	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49242
1060792	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49280
1065610	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49310
2728318	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution
1065477	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49332
1065487	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49306
1064445	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49290
1064363	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49239
1065543	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49288
1064753	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49306
1065101	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49288
1065102	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49330
1065083	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49336
1065159	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48906
1065055	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49329
1064899	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49348
1064897	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49346
1064858	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49308
1064808	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49315
1064765	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48387
1064741	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49287
1064729	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49311
2727783	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution
1064585	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49306
1064372	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49336
1064242	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49287
1064474	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49306
2727354	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution
1064303	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49166
1064298	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49334
1064268	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49332
1064272	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49150
1064250	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49328
1064248	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49315
1064233	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49314
1064216	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48906
1064222	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49312
1064208	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49330
1064206	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49329
1064207	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49186
1064212	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49284
1064194	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48819
1064304	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49290
1064090	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49323
1063209	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49306
1063970	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49057
1063972	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49061
1064038	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49316
1063978	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49134
1063897	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49150
1063957	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#45548
2726722	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50201
2726630	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50201
1063031	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49150
1062871	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49150
1062741	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49304
1062089	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#49150
2724327	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution
1060444	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49238
1060434	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49239
1060349	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48575
1059964	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49241
1059871	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49263
1059786	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49260
1059624	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49061
1059627	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49072
2723417	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50201
2723288	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50201
1059289	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49238
1059063	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49238
1058233	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48575
1058256	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49238
1057752	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49181
1057640	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
2719688	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution
1053802	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49194
1053750	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
Displaying 100 of 119 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	18	120

[baronfel]

I thought @tmat already fixed this with a servicing fix to the 9.0.1xx releases? It should be in 102 or 103?

[tmat]

The warning is not the reason why the test failed.

[tmat]

This commit hasn't been integrated to main yet: 3cd7c65

[Forgind]

@tmat, just hit this issue in #45419, which is targeting release/9.0.3xx. I don't think this worked.

[Forgind]

https://helixr1107v0xdeko0k025g8.blob.core.windows.net/dotnet-sdk-refs-pull-45419-merge-3ed9793f78ef4bc6b6/dotnet-watch.Tests.dll.1/1/console.dd2344c8.log?helixlogtype=result

[tmat]

@Forgind You can ignore Mac ARM64 failures. The machines are slow and the tests time out.

[Forgind]

@Forgind You can ignore Mac ARM64 failures. The machines are slow and the tests time out.

Can you explain that a bit further? @marcpopMSFT told me that those machines should actually be faster than the x64 machines. That said, we've also had a lot of timeouts and are actively working on figuring out why (without success as of yet, hence the PR I linked). It may be that we've just misunderstood where the issue is on that leg, and we should just increase the timeout across the board.

[tmat]

@Forgind Not sure what the status is right now, but the Mac ARM64 CI leg has been optional for a while.

[Forgind]

It's optional right now because it's been timing out, but we've been trying to figure out why it keeps timing out so we can turn it back on. I don't know that it's just automatically slow.

[tmat]

Oh, I see. So in this specific case the logs show that dotnet build is taking very long time. Not sure where it gets stuck:

Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.AddSourceFile [OUTPUT] dotnet watch 🚀 Launched '/private/tmp/helix/working/B2910953/p/d/dotnet' with arguments 'build /private/tmp/helix/working/B2910953/w/A696090A/e/testExecutionDirectory/AddSourceFile---E93D266F/AppWithDeps/App.WithDeps.csproj -consoleLoggerParameters:NoSummary;Verbosity=minimal': process id 96065

Seems like memory dumps were saved but I don't see them in the artifact list.

[marcpopMSFT]

To clarify, forgind was trying to get context on your comment that the arm64 machines are slow. Ever since we added that leg, it has been fairly consistently timing out. When I asked the codeflow chat, they indicated that arm64 should be faster than x64 so it wasn't a machine issue and we should dig further. That's when we made them optional, later turned them off, and have been trying to find out why they are timing out ever since. Do you have a reason to believe the mac arm64 machines are slower than the x64 ones?

[tmat]

Do you have a reason to believe the mac arm64 machines are slower than the x64 ones?

No specific reason. I didn't know forgind is trying to figure out why. Just stating that we have been skipping the CI leg because it's been timing out.