Created attachment 145251 [details] I can't update the packages SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. 2. 3. OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: 5.12.9 (available in About System) KDE Plasma Version: 5.12.19 KDE Frameworks Version: 5.44.0 Qt Version: 5.9.5 ADDITIONAL INFORMATION version kernel4.15.1-124-generic 64 bits
Discover only offer updates that are made available by your distro So this means that your distro (Kubuntu 18.04, I imagine) isn't offering any updates beyond 5.12.9. You need to upgrade to a newer version of your distro.