Ubuntu 问题汇总
1.W: GPG error: http://extras.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <KEY>
1.W: GPG error: http://extras.ubuntu.com trusty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 16126D3A3E5C1192
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <KEY>
