In my case, I created a new project and when I ran it the first time, it gave me the following error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
So my solution was to go to the Package Manager Console inside the Visual Studio and run:Update-Package
~ Answered on 2015-06-13 20:56:55