This was discussed on the Slackbuilds mailing list:
Niels Horn posted: "Evince changed to using the schema-based GSettings, removing the
GConf stuff. These GSettings functions are not available in 'our'
glib."

I still find Wolvix to be an extremely strong contender - they have a great software selection - but my enthusiasm is partly based on their design. It looks cool, IMO.

christian wrote:Maybe xarchiver would be a better archive manager than file-roller.

Does Xarchiver (or any application) plug into PCManFM2 like it does with Thunar? Does PCManFM have something like Thunar's Custom Actions?
Secondly, doesn't File-Roller add a horrifying number of dependencies?

They are, unfortunately, also consistent in their inadequacy. Intelligent defaults should eliminate the need for most of them.