Err:3 http://us.archive.ubuntu.com/ubuntu xenial InRelease
Could not execute 'apt-key' to verifyGPG error: http://security.ubuntu.com/ubuntu xenial-security InRelease: Could not execute 'apt-key' toW: GPG error: https:/&
They have been ignored, or old ones used instead.pub 1024D/7FAC5991 2007-03-08sub 4096R/997C215E 2017-01-24 [expires: 2020-01-24]sudo apt-keydel D38B4796sudo
archive.ubuntu.com/ubuntu xenial-updates InRelease
Could not execute 'apt-keyGPG error: http://eu-west-2.ec2.archive.ubuntu.com/ubuntu xenial InRelease: Could not execute 'apt-keyGPG error: http://ppa.launchpad.