title: Compilation failed for data model at path
body: <p>I'm trying to release an app to the app store tonight.  I've been developing the  Xcode 6 - Beta 2 for the past few months (Objective-C only) and didn't know you were not allowed to submit via Xcode Beta.  So, I opened the project in plain Xcode and upon an attempt to re-archive the project received the following error:</p>
  
  <p><code>Compilation failed for data model at path '/Users/ME/Library/Developer/Xcode/DerivedData/ProjectDataFolder/Build/Products/Debug-iphoneos/Project.app/Model.momd/Model.mom'</code></p>
  
  <p>I tried deleting the derived data, cleaning the build folder, etc etc the standard stuff. I also tried cleaning the archives folder and the simulator apps folder.  Neither worked.  However, reopening the app in Xcode Beta worked on the first try. Back to Xcode, same error occurred. </p>
  
  <p>Any help would be greatly appreciaed.</p>