A cancelled build in VS can show up as "0 warning 0 errors build FAILED"

[rainersigwald]

While investigating a problem that turned out to be unrelated @jonathanpeppers discovered that some design-time builds were failing, with no information as to why:

 15:43:19.857     1>Done Building Project "C:\Users\jopepper\source\repos\MauiApp40\MauiApp40\MauiApp40.csproj" (ResolveFrameworkReferencesDesignTime;ResolveProjectReferencesDesignTime2;CollectResolvedSDKReferencesDesignTime;CollectPackageReferences;ResolveComReferencesDesignTime;BuiltProjectOutputGroup;CollectFrameworkReferences;CollectUpToDateCheckBuiltDesignTime;CollectPackageDownloads;ResolveAssemblyReferencesDesignTime;GenerateSupportedTargetFrameworkAlias;CollectAnalyzersDesignTime;CollectUpToDateCheckInputDesignTime;CollectUpToDateCheckOutputDesignTime;ResolvePackageDependenciesDesignTime;CollectSuggestedWorkloads;CollectCentralPackageVersions;CompileDesignTime;CollectResolvedCompilationReferencesDesignTime target(s)) -- FAILED.

 
Project Performance Summary:
        1 ms  C:\Users\jopepper\source\repos\MauiApp40\MauiApp40\MauiApp40.csproj   1 calls
                  1 ms  ResolveFrameworkReferencesDesignTime;ResolveProjectReferencesDesignTime2;CollectResolvedSDKReferencesDesignTime;CollectPackageReferences;ResolveComReferencesDesignTime;BuiltProjectOutputGroup;CollectFrameworkReferences;CollectUpToDateCheckBuiltDesignTime;CollectPackageDownloads;ResolveAssemblyReferencesDesignTime;GenerateSupportedTargetFrameworkAlias;CollectAnalyzersDesignTime;CollectUpToDateCheckInputDesignTime;CollectUpToDateCheckOutputDesignTime;ResolvePackageDependenciesDesignTime;CollectSuggestedWorkloads;CollectCentralPackageVersions;CompileDesignTime;CollectResolvedCompilationReferencesDesignTime   1 calls
 
Build FAILED.
    0 Warning(s)
    0 Error(s)

Eventually, he set enough breakpoint to see a message mentioning cancellation

and we were able to see some project system code calling BuildManager.CancelAllSubmissions().

. . . but that MSB4188 log message was nowhere to be found in the binlog, which wasted a ton of debugging time. We should try to fix that.

[Forgind]

Do we have any more information like a repro?

[jonathanpeppers]

I think you can create a new .NET MAUI project and just watch the design-time builds appear in Project System Tools. Frequently, one of them will fail with this problem.

Use 17.2 Preview or VS main to see it.

[Forgind]

Was this fixed at some point? I made a new Maui app in the internal preview version of VS and saw lots of successful builds:

[jonathanpeppers]

@Forgind yes, it's possible that some of the work @tmeschter did recently fixed this. Related to: https://github.com/dotnet/maui/pull/6681

So maybe we don't have a repro for this problem anymore?

[rokonec]

@jonathanpeppers It has been a quite for a while. I assume, it has been resolved. Please reopen it, if you still experience this issue.