title: Code signing issue in Xcode 5
body: <p>My project has a sub-project. It's not being code-signed:</p>
  
  <p><img src="https://i.stack.imgur.com/OaYbN.png" alt="enter image description here"></p>
  
  <p>Even though I disabled code-signing, I still get this error:</p>
  
  <pre><code>Code Sign error: Multiple matching codesigning identities found: Multiple codesigning identities (i.e. certificate and private key pairs) matching “Mac Developer” were found.
  </code></pre>
  
  <p>When I look in the keychain, there's no duplicate key of "Mac Developer". I didn't have this issue in Xcode 4.x.</p>
  
  <p>How can I fix this?</p>
  
  <hr>
  
  <h2>EDIT</h2>
  
  <p>The issue description appears under "LaunchAtLoginHelper", so I'm positive that this project is causing the error.</p>