"Error saving credentials" in docker login

Question

I am executing the next command:

docker login

And the result that I get is:

 Error saving credentials: error storing credentials - err: exit status 1, out: 
 `Cannot autolaunch D-Bus without X11 $DISPLAY`

I am using an instance in Oracle Cloud that is:

Canonical-Ubuntu-16.04-2018.06.18-0

I tried fix it tipping the next command:

sudo apt-get install xorg openbox

Any idea about what is happening here??

Answer 1

This tip works for me (Ubuntu 18.04):

sudo apt update
sudo apt -V install gnupg2 pass