title: "The type or namespace name 'Route' could not be found" using "attribute routing"
body: <p>Just trying to splice some code from one working project to another.  The "from" project uses "attribute routing" where you embed <code>[Route(…)]</code> directives in the Web API controller modules to indicate what HTTP message should route to what service routine.  </p>
  
  <p>Works fine in the "from" project, but in the "to" project I get the build error "The type or namespace name 'Route' could not be found (are you missing a using directive or an assembly reference?)"</p>
  
  <p>I've tried copying essentially all of the <code>using</code> statements from the "from" project to the "to" project, but that has no apparent effect.  None of the MS documentation suggests that a NuGet package is required (or even a <code>using</code> statement).  Both projects are supposedly ASP.NET MVC 4.</p>
  
  <p>(And, yes, I updated WebApiConfig.cs with the <code>config.MapHttpAttributeRoutes();</code> statement.)</p>
  
  <p>Any ideas??</p>