title: Mac App Package Identity Not Installed
body: <p>I have a Mac app I'm trying to submit to the App Store.  I'm getting the error shown in the attached screenshot when I try to submit the app.  I created the certificate request from this exact Mac and archived the app on this Mac using the 3rd Party Mac App certificate.  All of that went fine.  But when I go to submit the app, I can't get past selecting the Code Signing Identity because it says that the package identity is not installed on this Mac.  I'm not sure how this is possible because I generated all of the certificates from this Mac and verified that they are all installed and valid.  I have submitted this Mac app previously without issue.  Has anyone else seen this?  I'm using XCode 4.3.2.</p>
  
  <p><img src="https://i.stack.imgur.com/VPVXJ.png" alt="Code Signing Identity Error"></p>