[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	Test	Pull Request
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
1053677	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.BrowserLaunchTests.Microsoft.DotNet.Watch.UnitTests.BrowserLaunchTests.LaunchesBrowserOnStart	#49191
1053685	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49119
1053309	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49150
1052880	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
1051629	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
1051594	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
1051050	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
1050197	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49119
2714659	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50200
2714660	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50201
1048044	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49097
1047665	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49055
1047515	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49086
1047138	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49079
1047254	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
1047112	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
2713321	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50200
2713322	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50201
1045987	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
1045951	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
2712819	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50200
2712820	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50201
1045311	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49059
1045302	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48956
1045296	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49057
1044972	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
1044734	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48964
1044931	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48910
1044918	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49047
2711792	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50176
2711793	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50177
2711714	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50177
2711716	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50176
2711332	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50169
2711331	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50167
2710971	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#50127
2710972	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#49770
2710822	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#50127
2710771	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#49770
1043560	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49012
1043554	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48919
1043298	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49001
1043238	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48977
1042570	dotnet/sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Aspire	#48982
1042686	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48984
1042252	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48977
1041088	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48925
1041013	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48935
1040634	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48909
2707961	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49771
2707868	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#49771
1039826	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48907
1037623	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48883
2705215	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49771
2705076	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#49771
1036710	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48737
1036717	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48858
1036711	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48751
1036716	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48859
1035705	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48696
2704494	dotnet-sdk	Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.Microsoft.DotNet.Watch.UnitTests.ApplyDeltaTests.MauiBlazor	#49771
1035704	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48697
2703565	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49771
1035212	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48832
1035154	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48609
1034753	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48696
1034754	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48697
2702675	dotnet-sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#49771
1033821	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48697
1033729	dotnet/sdk	dotnet-watch.Tests.dll.1.WorkItemExecution	#48813

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	10	73

[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.

[Forgind]

@tmat, hit this again in #47110

Please fix this.

[tmat]

This fixes a potential race condition: #47117
It looks like this race is hit by #47110 based on the test logs.

[Forgind]

@tmat, hit this again in #48081

[tmat]

@Forgind I don't see dotnet-watch failure in that PR.

Found this though:

xUnit.net 00:00:31.22]       System.TypeLoadException : Could not load type 'FluentAssertions.Execution.Execute' from assembly 'FluentAssertions, Version=8.0.2.0, Culture=neutral, PublicKeyToken=33f2691a05b67b6a'.
projecttoolscommandresolver: invalid commandResolverArguments
[xUnit.net 00:00:31.22]       Stack Trace:
[xUnit.net 00:00:31.22]            at Microsoft.NET.TestFramework.Assertions.CommandResultAssertions.Pass()
[xUnit.net 00:00:31.22]            at Microsoft.NET.TestFramework.Assertions.CommandResultAssertions.Pass()
[xUnit.net 00:00:31.22]         /_/test/Microsoft.NET.TestFramework/TestAsset.cs(268,0): at Microsoft.NET.TestFramework.TestAsset.Restore(ITestOutputHelper log, String relativePath, String[] args)
[xUnit.net 00:00:31.22]         D:\a\_work\1\s\test\Microsoft.DotNet.CommandFactory.Tests\GivenAProjectToolsCommandResolver.cs(170,0): at Microsoft.DotNet.Tests.GivenAProjectToolsCommandResolver.ItReturnsACommandSpecWithArgsContainingCommandPathWhenReturningACommandSpecAndCommandArgumentsAreNull()
[xUnit.net 00:00:31.22]            at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
[xUnit.net 00:00:31.22]            at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
[xUnit.net 00:00:31.22]            at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)