c# - System.Web.Helpers not found in VS2015

Question

I'm trying to add some JSON parsing to the C# code in VS2015 but I can't find:

System.Web.Helpers

as the MS documentation suggests. I've looked at other people's questions of a similar nature (almost all on earlier versions) and the answers all say to add it in the Assemblies / Framework dialog.

The problem is it doesn't appear in that dialog, nor do many of the other things I see people talking about.

I would really appreciate any help on fixing this.

Here is the list I have access to:

Edit: Added the Extensions window as well

Answer 1

This question is a bit old but here's a simple solution - Microsoft seemed to just move this library to a Nuget package called "microsoft-web-helpers". Installing that package seems to be equivalent to having the assembly.