The name 'ViewBag' does not exist in the current context
asp.net-mvc-3, dll, gac, viewbag
Solution
You need to add the MVC-specific Razor configuration to your web.config. See here: Razor HtmlHelper Extensions (or other namespaces for views) Not Found
Use the MVC 3 upgrade tool to automatically ensure you have the right config values.
Problem
I am trying to use ViewBag in my application, I have all of the recent dlls, the latest version of MVC 3, but yet I am still getting the Error: "The name 'ViewBag' does not exist in the current context" I have even uninstalled and then re-installed MVC 3 and yet there is no change. Also, I do not believe that the dll's are showing up in the GAC. What might be my problem? Or how to add the dll's to the GAC?