title: How to fix ibtool failed with exit code 255
body: <p>I have never encountered this problem before. The application used to run perfectly but now it always says this error. I have tried cleaning and rebooting. I have tried resetting IOS Simulator. I have tried deleting derived data. </p>
  
  <p>This is what it says: </p>
  
  <pre><code>CompileStoryboard YoungstersTennisApp/Base.lproj/Main_iPhone.storyboard
  cd /Users/DJ/Desktop/YoungstersTennisApp
  setenv IBSC_MINIMUM_COMPATIBILITY_VERSION 6.0
  setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
  setenv XCODE_DEVELOPER_USR_PATH /Applications/Xcode.app/Contents/Developer/usr/bin/..
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/ibtool --errors --warnings --notices --minimum-deployment-target 6.0 --output-format human-readable-text --compile /Users/DJ/Library/Developer/Xcode/DerivedData/YoungstersTennisApp-ftehnuqeslbyekfiszajlixujbqk/Build/Products/Debug-iphonesimulator/YoungstersTennisApp.app/Base.lproj/Main_iPhone.storyboardc /Users/DJ/Desktop/YoungstersTennisApp/YoungstersTennisApp/Base.lproj/Main_iPhone.storyboard
  </code></pre>
  
  <p>Command /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/ibtool failed with exit code 255</p>
  
  <p>Any help for this would be great. I also have quite a large storyboard. Does that matter?</p>
  
  <p>Thanks in advance!</p>