I executed the Ubuntu script at https://developers.yubico.com/PGP/SSH_authentication/ for yubikey 4
I got this message: gpg-connect-agent: no running gpg-agent - starting '/usr/bin/gpg-agent'
When the PGP agent is running run the following command:
ssh-add
It solved this issue for me.
I executed the Ubuntu script at https:/ /developers. yubico. com/PGP/ SSH_authenticat ion/ for yubikey 4
I got this message: gpg-agent'
gpg-connect-agent: no running gpg-agent - starting '/usr/bin/
When the PGP agent is running run the following command:
ssh-add
It solved this issue for me.