How do get rid of these broken package errors and install Mate in Linux Mint 16 Petra?

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http://unix.stackexchange.com – I have upgraded my computer to Linux Mint 16 Petra. Everything worked smoothly during the install with no errors, or indications of any problems. However, after I rebooted, Mate was no longer an option among all the sessions. I have Cinnamon and Gnome, but no Mate. I logged in using Cinnamon and tried to install Mate using Synaptic, but it keeps giving me errors about broken packages. How do I install Mate in Linux Mint 16 Petra? Here is some output that I hope will be helpful in determining the problem: homebase ~ # sudo apt-get install mate-desktop-environment Reading package lists... D (HowTos)