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

Tools->Options->Text Editor->C# (or All Languages)->General

check the check box for enable Auto List Members and Parameter Information in right hand side pane.

If its not selected,select it.