Mono take mscorlib.dll 2.0 instead of 4.0

Question

I am having a problem with an MONO application, I\'m trying to compile the project (with MonoDevelop) so as to load the library run mscorlib.dll 4.0 instead of version 2.0.

Answer 1

Right-click the project -> open the Build/General page and make sure Target Framework is Mono / .NET 4.0: