How to find reason of failed Build without any error or warning

Question

I have a WebApplication which contains reference to WCF services.

While building using Visual Studio 2010, Build fails without any error or warning. However building

Answer 1

In my case I set Diagnostic for the MSBuild verbosity as shown here.

Guess what... in the last line of the Output window in Visual Studio it showed this:

2>"C:\Company\Project\project.sharded\Project\Project.csproj" (Rebuild;BuiltProjectOutputGroup;BuiltProjectOutputGroupDependencies;DebugSymbolsProjectOutputGroup;DebugSymbolsProjectOutputGroupDependencies;DocumentationProjectOutputGroup;DocumentationProjectOutputGroupDependencies;SatelliteDllsProjectOutputGroup;SatelliteDllsProjectOutputGroupDependencies;SGenFilesOutputGroup;SGenFilesOutputGroupDependencies target) (1) ->
2>(CoreCompile target) -> 
2>  C:\Company\Project\project.sharded\Project\Services\UserService.cs(387,59,387,62): error CS0136: A local or parameter named 'sut' cannot be declared in this scope because that name is used in an enclosing local scope to define a local or parameter
2>
2>    2147 Warning(s)
2>    1 Error(s)

This looks like a bug in Visual Studio 2019 (16.3.5).

No errors were shown in the Error List window in Visual Studio.

This is the kind of errors that generally appear in the Error List window.

This is the offending line:

var sut = _sdb.SysUsableThreads.SingleOrDefault(sut => sut.uid == thread.uid && sut.thread_core == thread.core);

OK. Can't use sut because the var is named sut and I named the lambda sut. Again, this is the kind of thing that should be displayed in the Error List. For sure this is a bug in Visual Studio 2019. I reported it inside Visual Studio.