When run from the terminal, and choosing "Installed Software", apper produces such error before disappearing: apper: symbol lookup error: /usr/lib/apper/libapper.so: undefined symbol: appstream_database_new Reproducible: Always Steps to Reproduce: 1. Open apper from the terminal 2. Click "Installed Software" Actual Results: Apper shuts down with error in the terminal: apper: symbol lookup error: /usr/lib/apper/libapper.so: undefined symbol: appstream_database_new Expected Results: Apper should show a list of packages. This also causes plasma-desktop to crash periodically (around once in 10 minutes for me), if apper updates icon is enabled in the system tray.
@Shmerl I am running Apper 0.8.2 on Fedora 20 and I am unable to reproduce the bug. Have you tried Apper 0.8.2?
It appears to be Debian specific bug, because Debian testing pushed out libappstream0 without updating apper at the same time, which broke it, since libappstream0 0.6 changed the ABI.