As you can see, I have an annoying problem:
The solution is to open your .csproj file and comment out this 1 online of XML:
The result is the following:
As you can see, the .csproj is no longer in the list. If you wish to include it then you can add the following:
<None Include="Application.Func.csproj" />
That's it! So Dang easy!