title: Getting build error: Unable to write to path after transition to Universal app
body: <p>I have an existing iPhone app (iOS6, ARC, Storyboards, XCode5) that I am trying to convert to Universal.  I did a Duplicate and Transition to iPad, then did a build.  This is what I got:</p>
  
  <blockquote>
    <p>Compilation failed. Unable to write to path: /Users/sd/Documents/iPhone Apps/SurveyorLevelingI/DerivedData/SurveyorLevelingI/Build/Products/Debug-iphoneos/SurveyorLevelingI.app/en.lproj/MainStoryboard.storyboardc</p>
  </blockquote>
  
  <p>I have moved the DerivedData folder to the project, cleaned the project, shutdown XCode 5, checked the permissions of the DerivedData folder (it's 777) all to no avail.</p>
  
  <p>Any ideas of what to check next?</p>