title: Xcode weird random error that doesn't go away
body: <p>I have a regular project i'm working on for a while - 
  I've edited the plist file, which caused some problem, so i've reverted to the old plist file (where all used to work), but the following errors always show and dont go away,</p>
  
  <p><img src="https://i.stack.imgur.com/V1hWb.png" alt="enter image description here"></p>
  
  <p>I've tried cleaning the project (Cmd+Shift+k , Cmd+Opt+Shift+k) , Tried resetting my pbjprox, tried clearing ~/Library/Developer/Xcode/DerivedData/ and /var/folders</p>
  
  <p>Nothing works, and i guess the errors are cached somewhere that i can't think of... </p>
  
  <p>Would appreciate your hints about this</p>
  
  <p>Shai</p>