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Software sources are inaccesible

Also when trying to access it from Ubuntu software center the entry that says "Edit software sources" is greyed out. Finally when running

cp /usr/share/applications/software-properties-gtk.desktop ~/.local/share/applications/ I receive the following message

cp: cannot stat `/usr/share/applications/software-properties-gtk.desktop': No such file or directory

And when I run

gedit ~/.local/share/applications/software-properties-gtk.desktop

It opens a blank text file in geddit.

How can I get a software sources back?

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up vote 2 down vote accepted

The package for software source is the "software-properties-gtk"

Go to "Ubuntu Software Center" and search for the package "software-properties-gtk", if the package is not installed , please install it.

enter image description here


share|improve this answer
In my 14.04 setup, I couldn't find this package through the Software Center. Had to run sudo apt-get install software-properties-gtk on terminal. – Waldir Leoncio Aug 23 '15 at 13:08

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