I'm a beginner when it comes to the Linux environment. I recently tried to install some extensions in Linux. I've entered some commands like:
sudo apt-get install gnome-tweak-tool
and then when I tried to update with:
sudo apt-get update
I received this message:
E: Type 'ME' is not known on line 2 in source list /etc/apt/sources.list.d/gnome3-team-gnome3-precise.list
Each time when I want to update I receive this error. Does anyone have any ideas as to how I may correct this problem?