title: SignalR - Type or namespace name 'Hub' could not be found
body: <p>I am new to the SignalR library. I created a new web project in VS2010, then in Package Manager Console I executed the below command to set up the SignalR packages.   </p>
  
  <pre><code>PM&gt; Install-Package Microsoft.Aspnet.SignalR -pre
  
  So it downloaded all the necessary files into the application.
  ----------
  Successfully installed 'Microsoft.AspNet.SignalR 1.0.0-rc2'.
  Successfully added 'jQuery 1.6.4' to demo.
  Successfully added 'Microsoft.AspNet.SignalR.JS 1.0.0-rc2' to demo.
  Successfully added 'Newtonsoft.Json 4.5.11' to demo.
  Successfully added 'Microsoft.AspNet.SignalR.Core 1.0.0-rc2' to demo.
  Successfully added 'Owin 1.0' to demo.
  Successfully added 'Microsoft.AspNet.SignalR.Owin 1.0.0-rc2' to demo.
  Successfully added 'Microsoft.Web.Infrastructure 1.0.0.0' to demo.
  Successfully added 'Microsoft.Owin.Host.SystemWeb 1.0.0-rc2' to demo.
  Successfully added 'Microsoft.AspNet.SignalR.SystemWeb 1.0.0-rc2' to demo.
  Successfully added 'Microsoft.AspNet.SignalR 1.0.0-rc2' to demo.
  ----------
  </code></pre>
  
  <p>Now I added a new class file called <code>LetsHub.cs</code>.</p>
  
  <p>In that file I wrote the following code,</p>
  
  <pre><code>using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Web;
  using Microsoft.AspNet.SignalR.Hubs;
  
  namespace demo.Hubs
  {
    [HubName("chatHub")]
    public class LetsChat : Hub
    {
        public void SendMsg(string Message)
        {
           Clients.All.addMessage(Message);
        }
    }
  }
  </code></pre>
  
  <p>I am not able to inherit this <code>Hub</code> class. </p>
  
  <p><code>Type or Namespace name Hub cound not be found ( are you missing using directive or assemblr reference ? ).</code></p>
  
  <p>I am facing the same problem on VS 2012 as well.</p>