app-store-connectcertificatexcode
I generated a new Apple Distribution Certificate for my React Native project because I got an email saying my old one was going to expire. It appears to be in my keychain:
but when I try to upload my app to the app store, it shows this error:
and when I click Manage Certificates it shows this:
What I Want To Know: How do I make sure that my new certificate is in my keychain such that Xcode detects it and doesn't show this error?
I had this exact problem just today (Aug 13 2015)
Go into the member center, find the certificate, and revoke it. Leave the member center.
xcode 6+ will automatically find the certicate has been revoked and will create & download a new one when you carry out an action that requires it.
I sometimes find it also helps to delete your account from Xcode->Preferences->accounts and add it back in.
Indeed it scared me the first time I tried it.
The procedure to locate an expired certificate in a specific keychain is covered well in this answer:
Be sure that you look on the left of the Keychain Access window - you should have a login keychain, maybe an iCloud keychain, a system Keychain and System Roots.
If you don't find the expired certificate in the first keychain, repeat the process after selecting each other keychain. Also pay attention in case you are not selecting All Items or Certificates in the filter under the list of Keychains.
Best Answer
You need to obtain the private key for the certificate before you can use it for signing with Xcode.
When using Keychain, the private key is generated on the computer that was initially used for creating the certificate signing request (CSR) that is sent to Apple in order to obtain the certificate.
You need to copy the private key from that computer to your current computer in order to be able to use the certificate with Xcode.