Package: gnome-activity-journal Version: 0.8.0 gnome-activity-journal seems to be missing the dependency of zeitgeist and python-zeitgist.
Tried on Ubuntu 17.10. See also: https://bugs.launchpad.net/ubuntu/+source/gnome-activity-journal/+bug/1574122 -- Walter Garcia-Fontes L'Hospitalet de Llobregat