One more thing about the bubblewrap. Now that gnome-desktop3 (libgnome-desktop-3-17_3.30.1-1ubuntu1) is build against bubblewrap and depends on it, thumbnailer is working correctly on my system.
The new gnome-desktop3 has been changed: "debian/patches/disable-bubblewrap.patch, debian/control*: Drop changes to disable bubblewrap, now that it is approved to go into main." I did test this with the official nautilus-3.26.4-0ubuntu4 and tracker_2.1.4-1 (in proposed). -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1791991 Title: Nautilus in Gnome3 Staging PPA does not create thumbnails (tiff) Status in nautilus package in Ubuntu: New Bug description: Nautilus version 3.30.0-0ubuntu1~cosmic1 in Gnome3 Staging PPA will not start. I am using Gnome-shell environment. And I also installed the new tracker version 2.1.3-1~cosmic1 from Gnome3 Staging PPA. This is the error message when trying to start Nautilus from terminal: Tracker-ERROR **: 20:33:14.659: Unable to find default domain ontology rule /usr/share/tracker/domain-ontologies/default.rule To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1791991/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp