title: SignalR 2.0.2 Creating PersistentConnection
body: <p>I installed SignalR 2.0.2 to my MVC 4.5 Application by using package manager console. And I did the standard example for the connection configuration. </p>
  
  <pre><code>namespace SignalRPersistent
  {
  
      public class Startup
      {
          public void Configuration(IAppBuilder app)
          {
              app.MapSignalR("/echo");
          }
      }
  }
  </code></pre>
  
  <p>The problem is MapSignalR method does not accept string, while compiling the error says that </p>
  
  <p>Argument type string is not assignable to parameter type SignalRHubConfiguration. But I can see an overload method that accepts a string but it insists not to be compiled. What can be problem ? </p>