Ubuntu Version
Ubuntu 24.04 LTS
Desktop Environment (if applicable)
GNOME
Problem Description
Snap store updated to app center following the resolution of a specific problem regarding the chown command in Wifi setting missing, Possible chown problem
App Center will not open and neither will snaps such as Firefox and VLC.
Most other apps work fine now such as Microsoft Edge, which was downloaded and installed from the website, debian files, and most flatpak downloaded apps.
Error Messages / Logs
When attempting to run from terminal,
$ firefox
update.go:193: cannot change mount namespace according to change mount (/run/user/1000/doc/by-app/snap.firefox /run/user/1000/doc none bind,rw,x-snapd.ignore-missing 0 0): cannot inspect "/run/user/1000/doc": lstat /run/user/1000/doc: permission denied
cannot create user data directory: /home/observant/snap/firefox/8995: Permission denied
Similar response from running snap-store and VLC
When opening the flatpak Steam loader,
The unofficial Steam Flatpak app now requires user namespaces to be
enabled.
Check that the bubblewrap executable used by Flatpak, usually
/usr/bin/bwrap or /usr/libexec/flatpak-bwrap, is not setuid root.
If the file /proc/sys/kernel/unprivileged_userns_clone exists, check that
it contains value 1.
If the file /proc/sys/user/max_user_namespaces exists, check that its
value is at least 100.
For more details, please see:
https://github.com/flatpak/flatpak/wiki/User-namespace-requirements