trawor/XToDo — pull request #12 by funky-monkey (2014-02-17 14:47:15+00:00)
Title: Fixed Xcode crashing problem - command /developer/usr/bin/ibtool failed with exit code 255

I actually found a fix from this comment: https://github.com/mneorr/Alcatraz/pull/98#issuecomment-29609609

I went through the same steps he describes and found that the appearanceType="lightContent" was the root of the problem. It lives in < window... >