If you experiment with this error message when you open GNOME Photos apps.
'dbus:org.freedesktop.Tracker3.Miner.Files' ...
Check if you have installed tracker-miners bundle already installed. If you don’t have it installed, reboot your system. This message will disappear and the app will work.
tracker-miners
Always a good reminder!
There were originally concerns about tracker-miners which led to this being an optional bundle. History here
I understand I don’t have performance issues at this moment, but it is better to maintain them separately.
Already in 2012, Zeitgeist raised some eyebrows : Zeitgeist Discussion