SUMMARY I use KDE Neon Testing. After the last update, the application System Settings does not work. I tried to run from the terminal. It shows that the problem with linking the setActiveBackgroundColor method in the Kirigami module STEPS TO REPRODUCE 1. Run systemsettings5 from terminal OBSERVED RESULT user@desktop:~/$ systemsettings5 systemsettings5: symbol lookup error: /usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kirigami/org.kde.desktop.so: undefined symbol: _ZN8Kirigami13PlatformTheme24setActiveBackgroundColorERK6QColor EXPECTED RESULT Operating System: KDE neon Testing Edition KDE Plasma Version: 5.17.90 KDE Frameworks Version: 5.67.0 Qt Version: 5.13.2 Kernel Version: 5.3.0-26-generic OS Type: 64-bit Processors: 4 × Intel® Core™ i5-6500 CPU @ 3.20GHz Memory: 15,6 ГиБ ADDITIONAL INFORMATION
*** This bug has been marked as a duplicate of bug 416662 ***