Fixing NO_PUBKEY: W: GPG error: http://ppa.launchpad.net precise Release: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 2EA8F35793D8809A apt-key adv –keyserver keyserver.ubuntu.com –recv-keys 4F4EA0AAE5267A6C or for EasyEngine: apt-key adv –keyserver keyserver.ubuntu.com –recv 3050AC3CD2AE6F03 Fixing PIP / Letsencrypt Error: OSError: Command /root/.local/share/letsencrypt/bin/python2.7 – setuptools pkg_resources pip wheel failed with […]