Ubuntu 22.10: Ubuntu Desktop - No ubuntu settings found

[[e-mail]]

When updating an extension in the Extensions Manager (20221205), I logged out, when logging in, an ERROR warning appeared, gray screen. I opened a new user account and uninstalled EXTENSIONS. Ubuntu 22.10 is working again but in "settings - ubuntu desktop" I get the message that "No ubuntu settings found" - "Ooops,somethingg has gone wrong. Please report a bug in Launchpad."
I tried reinstalling "gnome-control-center" (https://askubuntu.com/questions/1438756/how-to-restore-ubuntu-desktop-setting-thats-missing-in-ubuntu-22-10) but it didn't work .
If I install any version of "Extensions" or "Extensions Manager" with my new "user", the old user's Ubuntu stops working.

Reading package lists... Done
osz@osni-ubuntu:~$ sudo apt-get install --reinstall gnome-control-center
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 2 not upgraded.
Need to get 0 B/1.079 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 256223 files and directories currently installed.)
Preparing to unpack .../gnome-control-center_1%3a43.0-1ubuntu2_amd64.deb ...
Unpacking gnome-control-center (1:43.0-1ubuntu2) over (1:43.0-1ubuntu2) ...
Setting up gnome-control-center (1:43.0-1ubuntu2) ...
Processing triggers for gnome-menus (3.36.0-1ubuntu3) ...
Processing triggers for man-db (2.10.2-2) ...
Processing triggers for mailcap (3.70+nmu1ubuntu1) ...
Processing triggers for desktop-file-utils (0.26-1ubuntu4) ...
osz@osni-ubuntu:~$ gnome-control-center display

(gnome-control-center:29664): Gtk-WARNING **: 19:54:37.247: Theme parser error: gtk.css:2:1-120: Failed to import: Error opening file /<email address hidden>/styles/gtk4/buttons-left/maximized.css: No such file or directory

(gnome-control-center:29664): ubuntu-cc-panel-WARNING **: 19:54:37.544: No Ding is installed here. Please fix your installation.

(gnome-control-center:29664): ubuntu-cc-panel-WARNING **: 19:54:37.544: No Ubuntu Dock is installed here. Panel disabled. Please fix your installation.

(gnome-control-center:29664): Gtk-WARNING **: 19:54:42.378: Finalizing AdwPreferencesPage 0x55f12fa0dbe0, but it still has children left:

(gnome-control-center:29664): Gtk-WARNING **: 19:54:42.378: - GtkCenterBox 0x55f12fa16df0

(gnome-control-center:29664): ubuntu-cc-panel-WARNING **: 19:54:42.395: No Ding is installed here. Please fix your installation.

(gnome-control-center:29664): ubuntu-cc-panel-WARNING **: 19:54:42.395: No Ubuntu Dock is installed here. Panel disabled. Please fix your installation.

(gnome-control-center:29664): Gtk-WARNING **: 19:54:52.307: Finalizing AdwPreferencesPage 0x55f12fadfba0, but it still has children left:

(gnome-control-center:29664): Gtk-WARNING **: 19:54:52.307: - GtkCenterBox 0x55f12faf9170

[[e-mail] (osz-winkelmann-6)]

The issue was resolved using the tip found at https://askubuntu.com/questions/67764/how-to-remove-and-reinstall-gnome-3 by Esmaeil MIRZAEE who suggested purging gnome-shell and reinstalling it. Just "remove" wasn't enough.

"1 and 2 provide a simple step by step guide to install Gnome on Ubuntu. However, for the sake of completeness, first of all, remove the current Gnome by apt purge gnome-shell. And then reinstall the following packages, apt install gnome -shell ubuntu-gnome-desktop.

Finally, one more thing is to choose the default graphical interface, for instance, when you are hosting LXDE and Gnome-3 simultaneously on your PC, it will ask for gdm3 V lightdm.

May 9, 2018 at 21:36
Esmaeil MIRZAEE"

[[e-mail] (osz-winkelmann-6)]

I reinstalled "Extensions" and the gray screen problem came back, but in "Settings/Ubuntu Desktop" now the options appear and I can use the options of "Dock" and "Desktop Icons".

[[e-mail] (osz-winkelmann-6)]

I was able to get the "Extensions Manager" working using the Flatpak version.
Installing the .deb and snap versions, Ubuntu returned to the gray screen and crashed.