title: Command pbxcp fails Xcode build
body: <p>I have a problem. I've downloaded project from svn and after build I've got this error message: </p>
  
  <pre><code>Command /Developer/Library/PrivateFrameworks/DevToolsCore.framework/Resources/pbxcp failed with exit code 1
  </code></pre>
  
  <p>What does it mean? How do I fix it?</p>