title: Xcode6 - ibtool failed with exit code 255
body: <p>I read all previous answers for this question but nothing helped to me.</p>
  
  <p>I wanted to learn Swift but even empty projects shows this error after build:</p>
  
  <blockquote>
    <p>Command /Volumes/Xcode/Xcode6-Beta4.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/ibtool failed with exit code 255</p>
  </blockquote>
  
  <p>I use Xcode6-Beta4.</p>
  
  <p>When I try to click Storyboard, Xcode crashes.
  Checked my previous applications - same problem with storyboard. But on Xcode5 they work perfectly.</p>
  
  <hr>
  
  <p>What I tried/checked</p>
  
  <ul>
  <li>I have no special symbols in the name/id/etc.</li>
  <li>Provisioning profile is connected successfully.</li>
  <li>Choosing another device/target in Deployment Info didnt help too</li>
  <li>Clean/Rebuild/Restart/Reboot/Waiting for hour and smoking didnt help.</li>
  </ul>
  
  <p>So I give up and really need your help.</p>