Visual Studio 2013 IntelliSense stops working for ASP.NET MVC5 Controllers

Question

I am facing a weird problem in my Visual Studio 2013 ASP.NET MVC 5 project. All of a sudden, the IntelliSense in the Controller classes of the MVC 5 project are not working

Answer 1

You can unload project and reload the MVC project from solution

1. Right Click on MVC project in solution explorer -> "Unload Project"
2. Right Click on MVC project in solution explorer -> "Reload Project"

After this the Intellesense rework quickly.