title: Could not load type Error C#.Net
body: <p>I have 14 projects in my application. All projects are working fine except one. I am getting the error </p>
  
  <blockquote>
    <p>"Could not load type "source.exit.maincontrol" from "source.exit.main" version=6.0.0.0 " culture=neutral publickeytoken=null.</p>
  </blockquote>
  
  <p>I migrated this application from .NET 1.1 to .NET  4.0. and this application works fine in .NET 1.1 but not in 4.0.</p>
  
  <p>Because source.exit.main is the project in my application I have checked it has type maincontrol in it. Here are things's that also verified:</p>
  
  <ol>
  <li>Checked the target platform that is 4.0 for every project.</li>
  <li>Checked the dll present in the folder.</li>
  <li>Checked the type it is present in the dll.</li>
  <li>Every project is set to any CPU</li>
  </ol>