title: Missing add view/go to view in my VS2017
body: <p>the add view and other menus are missing.</p>
  
  <p><a href="https://i.stack.imgur.com/1gh7w.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1gh7w.png" alt="enter image description here"></a></p>
  
  <p>I already tried fixing my GUID as said in this <a href="https://stackoverflow.com/questions/10540198/context-menu-to-add-controller-view-missing">link</a></p>
  
  <p>but it didn't work for me. Any ideas?</p>
  
  <p>I noticed that everytime I close a project. Those menus will go missing when I reopen them.</p>