GPG error on package manager

[JackalWaves]

I'm using Whonix.

When I add any software to my Whonix package manager, I get the following error:

W: GPG error: default InRelease: The following s...available: NO_PUBKEY [letters/numbers of key]

 

[GatorsFan]

If you want to use the key at https://example.com/EXAMPLE.gpg for a repository listed in /etc/apt/sources.list.d/EXAMPLE.list, use:

sudo mkdir -m 0755 -p /etc/apt/keyrings/

and put the keys there - see this thread - https://stackoverflow.com/questions...es-in-trusted-gpg-d-instead/71384057#71384057