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:
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
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.
Any ideas of what to check next?