I am using Kali GNU/Linux 1.1.0, I want to change default kali theme to some other theme, I searched different different post most of them are using gnome-tweak tool, I tried:

sudo apt-get update

And then:

sudo apt-get install gnome-tweak tool

I got following message:

Package gnome-tweak tool is not available, but is referred to by another package
This may mean that the package is missing, has been obsoleted, or is only
available from another source.
E: Package 'gnome-tweak-tool' has no installation candidate

Can somebody help me on that ?


First you need to make sure your source list is correct so it knows where to find the package, it seems this is your issue.

In a terminal issue the following commands

nano /etc/apt/sources.list

In this window copy and paste the below to the bottom of the existing list

deb http://security.kali.org/kali-security kali/updates main contrib non-free
deb http://http.kali.org/ /wheezy main contrib non-free

Now save it, press Ctrl + x press Y press enter

Back in the terminal

apt-get update
apt-get install gnome-tweak-tool

It should now download and install

Now issue gnome-tweak-tool in the terminal and it should open.


First of all please mention the Desktop Environment of your Distribution.
By the way try this

sudo apt-get update && sudo apt-get upgrade 
sudo apt-get install gnome-shell gnome-shell-extensions gnome-tweak-tool

This generally works with gnome desktop Environment. If still there is any error Then maintain your sources list.

  • OP did but indirectly. gnome-tweak-tool only is useful for GNOME3 UI – fpmurphy Sep 1 '15 at 7:50

I see a dash missing in your post. It is gnome-tweak-toolinstead of gnome-tweak tool

  • Except for the error: E: Package 'gnome-tweak-tool', so they copy/pasted one of the names incorrectly. This could maybe have been a clarifying comment... – Jeff Schaller May 5 '18 at 2:25

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