title: Code Sign error - XCode 4.5 - iOS 6
body: <p>I updated XCode to v. 4.5 and now when I try to Run an app I get the error: <code>Code Sign error: The identity 'iPhone Developer' doesn't match any valid, non-expired certificate/private key pair in your keychains</code> I don't use Apple Developer program for 99$. </p>
  
  <p><strong>What's wrong?</strong></p>
  
  <p>It happened just after the update. I searched a lot of answers on stackoverflow but no one helped me.</p>