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I've encountered a problem. After some time of using my ubuntu 14.04 + gnome shell i happend not to be able to open system settings. When I open it usually just nothing happens or system error occurs and it asks me to send a report.I've tried to run it from command line, but here's what i get:

marcin@marcin-laptop:~$ sudo gnome-control-center

(gnome-control-center.real:3201): GLib-GObject-WARNING **: cannot derive 'GnomeControlCenter' from non-fundamental parent type 'CcShell'

(gnome-control-center.real:3201): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed

(gnome-control-center.real:3201): GLib-GObject-CRITICAL **: g_object_new: assertion 'G_TYPE_IS_OBJECT (object_type)' failed

I've found in google that

Downgrading the library 1:3.10.1-0ubuntu1~saucy3 to 1:3.6.3-0ubuntu45 fixed the issue for me too.

(source: https://bugs.launchpad.net/ubuntu-gnome/+bug/1309419/comments/10)

might help but i don't know how to do it (I'm still new to Linux system). I would really appreciate if you could help :)

  • Try the command and check gconftool -g /apps/compiz-1/plugins/unityshell/screen0/options/devices_option – vembutech Dec 27 '14 at 9:57
  • Unforunately: "Couldn't set value for "/apps/compiz-1/plugins/unityshell/screen0/options/devices_option"" This is what i get after executing this command. – Zwierzak Dec 27 '14 at 10:29
  • Ok the issue is solved, I edited my first post and added the solution. Thanks @vembutech :) – Zwierzak Dec 27 '14 at 10:57
  • Thanks for reminding me @Rinzwind, i am not yet used to using stackoverflow types of sites and i often forget to do the most important things :) And where can i mark your answer for deleting? :P – Zwierzak Dec 27 '14 at 14:57
  • It's ok... you do not want to know what I messed up in my 1st few days here :D Feel free to create your own answer, accept and upvote it.I'll remove mine if you do :) – Rinzwind Dec 27 '14 at 14:59
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Firstly, I ran:

sudo dpkg-reconfigure gnome-control-center

It didn't help so i ran this one and it solved my problem:

sudo apt-get -f install --reinstall gnome-control-center

I hope it will help someone in the future.

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copied from the question


@SOLUTION! This worked for me :) Firstly, I ran:

sudo dpkg-reconfigure gnome-control-center

It didn't help so i ran this one and it solved my problem:

sudo apt-get -f install --reinstall gnome-control-center

I hope it will help someone in the future. Thanks for the help anyways :D

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