I only show a broken package when mint-meta-xfce is marked for install. When I run sudo apt-get update, I get:
jc@jc-Bonobo-Extreme ~ $ sudo apt-get update
[sudo] password for jc:
(process:8256): GConf-WARNING **: Client failed to connect to the D-BUS daemon:
Unable to autolaunch when setuid
(process:8256): Gtk-WARNING **: This process is currently running setuid or setgid.
This is not a supported use of GTK+. You must create a helper
program instead. For further details, see: http://www.gtk.org/setuid.html
Refusing to initialize GTK+.
terminate called after throwing an instance of 'Error'
It doesn't allow me to input my password.