I am trying to add MVC 4 features to my Sitefinity Web App (v. 7.1).
In order to do that, I have had to do the following:
1) Add references to EntityFramework
2) Add references to System.Web.Optimization via NuGet
3) Upgrade project to .NET v. 4.5
4) Upgrade the Web.config and add appSettings elements such as UnobtrusiveValidation
I then used Sitefinity Thunder to add an MVC Widget to the project. I was able to compile my solution but as soon as I attempted to run the Sitefinity Administrative backend, everything was broken. I could not access any of the Pages to create a new Content Page in order to add my MVC Widget.
I regularly develop with ASP.NET MVC in standalone projects so I am not sure how to deploy all of the code that I normally develop into a standard MVC 4 or MVC 5 Sitefinity Widget.