I am using the Dutch version of Linux Mint Cinnamon 2.1.3 and during the upgrade to Linux Mint 22 the last command I received the following error message. Something is wrong with a public key that seems to be not available!
What can I do about this? (see list below):
[x] W: **GPG-fout: http://dl.google.com/linux/earth/deb stable InRelease: De volgende ondertekeningen konden niet geverifieerd worden omdat de publieke sleutel niet beschikbaar is: NO_PUBKEY E88979FB9B30ACF2
I am using the Dutch version of Linux Mint Cinnamon 2.1.3 and during the upgrade to Linux Mint 22 the last command I received the following error message. Something is wrong with a public key that seems to be not available! What can I do about this? (see list below):