InvalidCastException is thrown after installing ASP.NET MVC 4 Beta

Question

I get the following exception after installing ASP.NET MVC 4 Beta on a machine with ASP.NET MVC 3.

System.InvalidCastException was unhandled by user c

Answer 1

1. In Visual Studio, create a new "throwaway" ASP.NET MVC 4 Application in a separate folder somewhere.
2. Replace the web.config file in your Views folder with the freshly created Views web.config file from the new throwaway application.

You will notice:

System.Web.WebPages.Razor changes from Version=1.0.0.0 to Version=2.0.0.0 System.Web.Mvc changes from Version=3.0.0.0 to Version=4.0.0.0