title: How to remove reference of file Xcode?
body: <p>I had removed some files from my iOS project a while back and thought they had been completely deleted. After a long time I created another class which unfortunately had the same name as one of those that I had removed from my project (but the reference nor the file had been removed).</p>
  
  <p>To make the long story short, my project tried using the reference to the old file, so I went through finder to delete the conflicting files. That solved the issue of which class was being reference. But the reference to the deleted files cause a warning in Xcode giving me a Missing File message.</p>
  
  <p>Does anyone know how I can remove the old references in order to get rid of this warning?</p>