"Error saving credentials" in docker login
for me helped this commenthttps://github.com/docker/compose/issues/6023
don't do apt install docker-compose and if you did, remove it and itsdependencies
sudo apt remove docker-compose -y && sudo apt autoremove
Today i had the same issue after installing docker.io and docker-compose on a fresh ubuntu.After reading the link posted by Ryabchenko Alexander i tried the command he posted.
I then found out, if you remove docker-compose and reinstalling it, everything started to work like expected.So my solution to overcome this issue in Ubuntu 18.04:
sudo apt remove docker-compose -y && sudo apt autoremovesudo apt install docker-compose -yPlease check out the answer of Ryabchenko Alexander for the link and reasons why this issue exist.