mvc 4 assembly reference missing for Json.Encode

Question

I am trying to call a Json.Encode(...) method in MVC 4 and I\'m getting an error: The name \'Json\' does not exist in the current context.

Answer 1

Apparently if you create a new empty web project, and try and move everything into Areas, it removes the Helpers library. But if you create it as an internet project, they remain. I created a new project as an internet project and everything works now.

Answer 2

1. References in solutions explorer > right click > Add reference
2. Under Assemblies > Framework, search for "System.Web.Helpers" Double click
3. System.Web.Helpers version 2.0.0.0 and click ok. Find the
4. System.Web.Helpers you've just added > right click it > properties.
5. Change "Copy Local" from false, to true

And now @Json.Encode should work.

Update

Answer 3

To be clear, even after you add the correct reference to your project, you still have to add this line at the top of your Razor page:

@using System.Web.Helpers;