title: SignalR namespace conflict? Can't use MapHubs()
body: <p>Trying to update signalr libs in my project, and suddenly solution doesn't build.  </p>
  
  <p>I have references to these guys: </p>
  
  <pre><code>Microsoft.AspNet.SignalR.Core.dll
  Microsoft.AspNet.SignalR.SystemWeb.dll
  </code></pre>
  
  <p>I have this in global.asax:</p>
  
  <pre><code>using System;
  using System.Web;
  using System.Web.Routing;
  </code></pre>
  
  <p>Intellisense sees that RouteTable.Routes.MapHubs() comes from SignalRRouteExtensions, but still breaks the build. Project is .net 4.0 MVC 3 app. Should not have any problems.</p>
  
  <p>Do you guys have any ideas why this is happening?</p>
  
  <pre><code>Error 71 'System.Web.Routing.RouteCollection' does not contain a definition for 'MapHubs' and no extension method 'MapHubs' accepting a first argument of type 'System.Web.Routing.RouteCollection' could be found (are you missing a using directive or an assembly reference?)    Global.asax.cs
  </code></pre>