title: Xcode 6 beta 2 issue exporting .ipa: "Your account already has a valid iOS distribution certificate"
body: <p>I'm having trouble exporting an app for Ad Hoc Distribution on Xcode 6 beta 2:</p>
  
  <p><img src="https://i.stack.imgur.com/tnX54.png" alt="Failed to locate or generate matching signing assets"></p>
  
  <p>When exporting my project for ad hoc development on Xcode 6, I receive this alert. I've tried exporting it on Xcode 5 and had no problems at all saving the .ipa. Is anyone experiencing this problem as well?</p>