Thread: Cannot open keyring in terminal

I am receiving this note in terminal when demanding to update publickeyring in terminal.

sudo] password for annamac:
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com ED8B789323DC003A
gpg: can't open `ED8B789323DC003A'

Close as duplicate.