I was attempting to install docker with snap and the error message is as follows:
l@l-Lenovo-Rescuer-15ISK:~$ sudo snap install docker
error: cannot perform the following tasks:
- Run install hook of "docker" snap if present (run hook "install":
-----
cannot update snap namespace: cannot create symlink in "/etc/docker": existing file in the way
snap-update-ns failed with code 1
-----)