How to install Trinity on ubuntu 12.04?

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http://askubuntu.com – If you didn't know Trinity is a fork of KDE 3.x and i want it on to Ubuntu 12.04 I try adding the PPAs and doing sudo apt-get install kubuntu-default-settings-trinity kubuntu-desktop-trinity but than i get a error that is 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 following information may help to (HowTos)