title: ambiguous matches in iphone developer between System.keychain and login.keychain
body: <p>I'm running into a code signing problem. The solutions posted in SO and elsewhere to remove a duplicate certificate but I have already done that and the build error keeps popping. I'm out of ideas on what to do.</p>
  
  <p>Under keychain access, there is login and System and both have iPhone developer: myName in it. Am I suppose to delete one of them? Which one should I delete? The login one or the System one?</p>
  
  <p>Thanks!</p>