Comment 25 for bug 1712808

## Issue

To the extent this helps anyone rediscovering this problem...

env penguin container in the chrome os termina VM:
running Debian11 zsh shell

`cannot setup udev for snap "core": cannot run udev triggers: exit status 1`

running through various snap debugs, there was also a state json error

`snap error: cannot read the state file: open state.json: no such file or directory`

## Solution

**Note - will delete information about previous snap installs.**

from [snapcraft forum](https://forum.snapcraft.io/t/snapd-cannot-run-daemon-cannot-read-state-unexpected-eof/17908/2)

* check state.json
* delete state.json
* restart and do a new snap install of core

### Check state.json
`sudo ls -lah /var/lib/snapd/state.json`
output should be something like
`-rw------- 1 root root 38K Jun 11 11:56 /var/lib/snapd/state.json`

### Delete state.json
You can mv-rename the old file if you wish. I simply
`sudo rm /var/lib/snapd/state.json`

### Restart Container
you can exit and reboot chromeos or
sudo reboot,
or if you access via lx, log out into lxc and stop/start the container and login

Then simply run
`sudo snap install core`

Worked for me - good luck