Troubleshooting

Snapd

bash: snap: command not found

If snap is not found, try installing it from its homepage

error: system does not fully support snapd: cannot mount squashfs image...

Sometimes an error like the following happens:

error: system does not fully support snapd: cannot mount squashfs image using "squashfs": mount:
       /tmp/sanity-mountpoint-258522878: mount failed: Operation not permitted.

First, try rebooting the terminal. Next, try running this (for Debian):

sudo apt update
sudo apt install libsquashfuse0 squashfuse fuse 
sudo apt install snapd

This install squashfuse, which fixes this most of the time.

Then try again installing like this:

sudo snap install hello-world

snap "lxd" assumes unsupported features

Some snaps require new snapd features and will show an error such as snap "lxd" assumes unsupported features" during install. You can solve this issue by making sure the core snap is installed (snap install core) and it’s the latest version (snap refresh core).

You can always go to a search engine for more info.