title: Converted Web Site Project to Web Application Project - Can not access UI Controls
body: <p>I have converted a large project, currently in VS 2012 from a Web Site project to a Web Application project.  </p>
  
  <p>I have added the namespace to all of my .cs files.</p>
  
  <p>I have ran the "Convert to web application" on the project and it has generated all of the needed files.  (So I do have the designer files created as part of this upgrade)</p>
  
  <p>When I compile, it errors off on all of the references in my C# code behind file for all of the UI Controls.  The error indicates that the control does not exist.  The controls are there, and they are present in the designer files.  </p>
  
  <p>I have cleaned my solution and no matter what I do I get this error.</p>
  
  <p>Any ideas / suggestions of things to try?  Have I missed something in the conversion to a Web Application?</p>