title: Switch from Asp.net Rc1 to Rtm throws exception that i dont understand
body: <p>I made a new Project in Rtm and transferred then my code to that project. I got it so far that I don’t get any errors in VS. When I try to start the IIS I get this error: </p>
  
  <pre><code>Could not load file or assembly 'System.Interactive.Async, Version=3.0.0.0,Culture=neutral, PublicKeyToken=94bc3704cddfc263'. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
  </code></pre>
  
  <p>It happens when the dbcontext is created for IServiceCollection.</p>
  
  <p>Any idea what could cause it? </p>
  
  <p>Sorry that I’m not posting any code but I don’t even know where to start because I don’t understand the error. If you want to see any code just ask.</p>