“The type or namespace name 'Route' could not be found” using “attribute routing”

Question

Just trying to splice some code from one working project to another. The \"from\" project uses \"attribute routing\" where you embed [Route(…)] directives in the W

Answer 1

In my case, in web api project there were two using references:

using System.Web.Http;
using System.Web.Mvc; 

As soon as I removed System.Web.Mvc, the error was gone.