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I installed the Faience theme (sudo apt-get install Faience) and it installed fine. Then I tried installing another package and it said this...

Reading package lists... Done
Building dependency tree       
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 faience : Depends: faenza but it is not going to be installed
 gnome-shell-extensions-user-theme : Depends: gnome-shell-extensions-common but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

Please help :O!

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First off, have you tried sudo apt-get -f install as apt tells you? – Zoke Jan 27 '12 at 2:03
This is most likely a problem during post-installation of a package that caused apt-get to abort. Removing the package is the only safe solution. – pablomme Jan 27 '12 at 2:05

Try running sudo apt-get remove faience, or equivalently sudo apt-get remove -f. The fact that installing a package resulted in this situation is most likely a packaging problem that caused apt-get to abort during post-installation.

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this is probably because faience is made from faenza try donwloading them from deviantart rather than apt-get and placing them in your home folder under .icons or .themes (depends what they are) , if you are using gnome tweak tool/gnome shell you will possibly need the user theme extension specified.

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