title: Apple LLVM 6.0 Error: clang failed with exit code -1
body: <p>I created my app on my MacBook Air and kept working with it there which was fine. Then I started working with a colleague who used another Mac (of course). Anyway, we share our Xcode project via Dropbox (we are just switching to BitBucket, don't worry ;) ), when he tried to open the project on his Mac there was a <code>Apple LLVM 6.0 Error</code> with the following error while on my computer the same project runs perfectly:</p>
  
  <blockquote>
    <p><strong>clang: error: no such file or directory: '/Users/linus/Dropbox/Apps/My App/Projekt/My App/SlideMenu/SlideMenu-Prefix.pch'
    clang: error: no input files</strong></p>
    
    <p><strong>Command /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang failed with exit code 1</strong></p>
  </blockquote>
  
  <p>The last lines of the error seem most important to me which is why I listed them here.</p>
  
  <p>I do know this question was asked several times now but there was never a useful answer which worked for me. I tried to disable the <code>Foundation Assertions</code> as it said in another answer on this topic but that did not work. Also I restarted &amp; even reinstalled Xcode and all files are existing, none should be missing.</p>
  
  <p>I am running Xcode 6.0.1 and Mac OS X 10.10. I hope someone can answer this, I'm kind of desperate now...</p>