MarsSeed [1] filed a deletion request for gnome-desktop2 [2]: GNOME2 is discontinued since 2011. As of now, no other package depends on this. It is also unbuildable due to broken, unmaintained dependencies. Better to delete it. Not useful to keep anymore. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/gnome-desktop2/