C# Debug - cannot start debugging because the debug target is missing

Question

I am fairly new to C#..

I am using Visual Studio 12, the source I am using was last edited in VS 12.. But my problem is that it\'s throwing me this error:

Answer 1

Switch Target framework to 4.5.2 or something higher and bring it back to your original version (example: 4.5) then when you build, it will work.