It is possible that you have the key in _two_ keyrings in trusted.gpg.d/ & in trusted.gpg itself.
It would be best for you to do the following: 1) sudo apt remove --purge ubuntu-dbgsym-keyring 2) sudo apt-key del 0xC8CAB6595FDFF622 3) sudo apt-key list | grep C8CAB6595FDFF622 => it should be empty now 4) sudo apt install ubuntu-dbgsym-keyring -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1920640 Title: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <[email protected]> To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-keyring/+bug/1920640/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
