After installing Ubuntu, my first priority is that installing Unity Tweak Tools. Sometime it comes up with the error schema missing such as: “com.canonical.notify-osd”
Something like this:
I had tried many solutions that I found on the internet. Finally, below solution is working for me. I am using Ubuntu v17.10 by the way.
$ sudo apt-get update
$ sudo apt-get install update
$ sudo apt-get install upgrade
$ sudo apt-get install notify-osd //this command shall fix the issue
Another choice is that, you can use Gnome Tweak Tools instead via Ubuntu Software Center, or by below command:
$ sudo apt-get install gnome-tweak-tool
That’s it. Hope it could fix your problem… 😉
