To use your certificates, you must have the intermediate signing certificate in your system keychain. This is automatically installed by Xcode. However, if you need to reinstall the intermediate signing certificate click the link below: Worldwide Developer Relations Certificate Authority (Expiring 02/07/2023) Worldwide Developer Relations Certificate Authority (Expiring 02/20/2030) Worldwide Developer Relations - G4 (Expiring 12/10/2030) Developer ID - G2 (Expiring 09/17/2031)