I got the same error. Distributor ID: Ubuntu Description: Ubuntu 16.04.1 LTS Release: 16.04 Codename: xenial
When launching gnome-software in a terminal: - As normal user: no error - As root got the error (7 times) cyrille@cyrille-W740SU:~$ sudo gnome-software [sudo] Mot de passe de cyrille : (gnome-software:8647): Gs-WARNING **: Failed to create permission org.freedesktop.packagekit.trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered ... (6 more time) Cheers. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1592123 Title: org.freedesktop.packagekit.trigger-offline-update warning Status in gnome-software package in Ubuntu: Confirmed Bug description: When run from the command line, I see this warning: Gs-WARNING **: Failed to create permission org.freedesktop.packagekit .trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered Version: gnome-software 3.20.1+git20160608.2.6c64ff1-ubuntu-xenial-0ubuntu1 on Ubuntu 16.10 (yakkety) from https://launchpad.net/~attente/+archive/ubuntu/gnome-software To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1592123/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

