title: Visual Studio 2015 Designer could not be shown
body: <p>I have this error that appears every time I try to open the designer for my deal class. 
  <a href="https://i.stack.imgur.com/MikNh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MikNh.png" alt="enter image description here"></a></p>
  
  <p>I've tried rebuilding the solution, cleaning, restarting visual studio to no aid. I have also checked the class itself, if there are any classes above, but this has not fixed the error.</p>