title: Lost permissions to edit .h files and save xcode6 project
body: <p>I have searched all over for an xCode 6 related problem that may inform me to solve my own problems but I haven't found anything helpful.</p>
  
  <ol>
  <li>Whenever I embed my Data View Controller into a Navigation Controller, the .h file shows a lock next to it, preventing me from making any edits to the area. When I try, “UINavigationController.h” is currently locked because you are not the owner of the file and do not have write permission" appears. I have the option to press "unlock" but when I do, it directs me to "Could not add write permission to the file because you do not own it. Try modifying the permissions of the file in the Finder or Terminal."</li>
  <li>As a result, I cannot save my xcode project.</li>
  <li>When I look at the permssions of the project via "Get Info" in the Finder, my name displays that I have Read &amp; Write privileges.</li>
  </ol>
  
  <p>How can I solve these problems? Please consider that I do not have much experience with these matters, which may already be obvious based on my question. Thanks for your help in advance.</p>