gnome-light, a package which should contain only the base components you need to run a gnome-system, is outdated, all dependencies are on gnome-2.2.x and it contains bonobo-activation, which is deprecated in gnome 2.4.
i just updated gnome-light for 2.4.1, please test @ gnome devs : gnome-light should be simultaneously updated with gnome meta from now on