Xcode expired certificate problem

Question

please look at the following screenshot

As you see there are two certificates. All are mine, with maching user's ID and common name.

Whenever I build the application and launch it in Xcode for device I receive the fatal, that this certificate is duplicated. So I delete the expired one and launch the application again - it's being installed and debugged on device without any problems.

But when I launch other project or reboot that expired certificate is shown in the keychain again and again and it's becoming a little bit annoying.

What causes that the expired certificate is being readded to the keychain? How can I dissable it?

Answer 1

The problem is you have not only the duplicate provisioning certificate, but also a duplicate developer public/private key pair.

You need to delete the matching public/private key for the certificate in addition to the provisioning certificate, then it will not be re-added.

So, find the certificate you generated and uploaded to the "certificates" section of the provisioning portal and delete it (WARNING: this certificate is never sent to Apple, and it's a huge stuffup if you delete a distribution private key that you need. Make a backup before deleting it, incase you accidentally delete something that you need).

Thanks to @dermdaly for posting this workaround. You can find more details at his blog.