title: Form does not open in VS2015, because own UserControl is not found
body: <p>Since i moved everything in my project to x64 and moved some files in subfolders everything works fine but an important form which is using an own userControl.</p>
  
  <p>When i open the Form in VS2015 i get</p>
  
  <blockquote>
    <p>Could not find type 'WYSIWYGEditor.Editor'. Please make
    sure that the assembly that contains this type is referenced. If this
    type is a part of your development project, make sure that the project
    has been successfully built using settings for your current platform
    or Any CPU.</p>
  </blockquote>
  
  <p>Before, this usercontrol was in the same project. After i got this error i tried many things to fix this error. After having no solution i moved it to an own project which is also compiling in x64 and is referenced from the main project. Compiling shows, that both are compiled in x64 and debugging and running the project works well.</p>
  
  <p>Last but not least i tried everything from here: <a href="https://social.msdn.microsoft.com/Forums/sqlserver/en-US/38524a8c-8c4c-48e7-b62d-0d02fe0f5624/user-control-quotcould-not-find-typequot-error-in-form-designer?forum=vbgeneral" rel="nofollow noreferrer">https://social.msdn.microsoft.com/Forums/sqlserver/en-US/38524a8c-8c4c-48e7-b62d-0d02fe0f5624/user-control-quotcould-not-find-typequot-error-in-form-designer?forum=vbgeneral</a></p>
  
  <ul>
  <li>Cleaning up project</li>
  <li>Recompiling</li>
  <li>Renaming the UserControl several Times</li>
  <li>Removing it from the form (form opens) and putting it back to the place</li>
  <li>...</li>
  </ul>
  
  <p>Nothing helped. Anyone had similar issues and was able to fix it?</p>
  
  <p>Greetings from Germany</p>
  
  <p><a href="https://i.stack.imgur.com/YeahV.png" rel="nofollow noreferrer">Image: Form does not open</a></p>