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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?

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2 Answers

You should edit gnome3-team-gnome3-precise.list with administrative privileges and manually remove all references to 'ME'. You can edit this file by opening terminal (shift+ctrl+T) and pasting the following commands (replace gedit with any text editor):

gksu gedit /etc/apt/sources.list.d/gnome3-team-gnome3-precise.list

Sources :[SOLVED] Cant update packages due to error

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Try simply opening Ubuntu Software Center and see if it offers you to repair repositories.

If it doesn't solve the problem, open Software Sources find the offending one (probably a PPA you have added) and disable it.

Then try sudo apt-get update again.

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