I want to migrate from MVC5 to MVC4, because my server is not supporting MVC 5 and giving me so many issues, Thanks in advance.
Best thing to do is probably create a new MVC 4 project and then drag all the files from MVC 5, except for web.configs, into that solution.
If you are using NuGet to use MVC 5 you could also try uninstalling the mvc 5 nuget package and then installing the specific version of MVC 4 you want via :
PM> Install-Package Microsoft.AspNet.Mvc -Version 4.0.30506