GPG Error

[olariuromeo]

Description

Steps to reproduce

sudo apt-get install software-properties-common
sudo apt-add-repository -y ppa:rael-gc/rvm
sudo apt-get update
sudo apt-get install rvm

W: GPG error: http://ppa.launchpad.net/rael-gc/rvm/ubuntu kinetic InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8094BB14F4E3FBBE

Expected behavior

Actual behavior

• command

Environment info