title: (xcode 6.1.1) ibtool failed with exit code 255
body: <p>I just install XCODE6.1.1 please help me on this issue. I will be thankful to you guys.
  When I click on storyboard in XCODE 6.1.1 Xcode crash. </p>
  
  <p>Command/Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/ibtool failed with exit code 255</p>