title: Xcode error: failed to launch
body: <p>I have a Mac app I have written to support iCloud. However, I get this when trying to run the app:</p>
  
  <blockquote>
    <p>error: failed to launch /Users/padsoftware/Library/Developer/Xcode/DerivedData/Scrawl-heofvoywsunchdhjowxkvkoiqvan/Build/Products/Release/Scrawl.app/Contents/MacOS/Scrawl</p>
  </blockquote>
  
  <p>The odd thing is that this appears for all of my Mac apps, with or without iCloud, with or without sandboxing, with or without entitlements, or ever with or without code signing. Any idea on how to fix this?</p>