Razor Views not seeing System.Web.Mvc.HtmlHelper

Question

I am in the process of upgrading to MVC4. I have followed the instructions at http://www.asp.net/whitepapers/mvc4-release-notes#_Toc303253806 but in my Razor views and layou

Answer 1

Update for Visual Studio 2017 Users:

If you have just migrated to Visual Studio 2017 and your project is MVC4, make sure you go back into the VS2017 Installer and check the MVC4 option under the "ASP.NET and web development" section. It is an optional component and not checked by default.

This solved my issue