[ubuntu] unable to correct problems, you have broken packages

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http://ubuntuforums.org – I am trying to install handbrake-gtk in 12.04 with gnome3 shell This is what I did: sudo add-apt-repository ppa:stebbins/handbrake-releases sudo apt-get update sudo apt-get install handbrake-gtk But I get: Quote: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The follow (Hardware)