I have started a new console project in VS2015. I only have this code :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text
Make sure you're launching Visual Studio as Administrator.
This has resolved the issue for me with the exact error message in question.
It is not ideal to run the VS in administrator mode at all times. Make sure you un-check the box once your issue has been resolved.