I'm continuously getting notification "Language support is incomplete, additional packages are required." in KDE system tray, with only option to obey it and install a hundred of packages. It is happening from a long time ago, I have seen this notification since KDE4.
I guess this is due ru_RU locale for Number/Time/Date formats.
Could you give an advise how can I configure this?
I want to believe there should be a better solution then just removing software-properties-kde qapt-batch kubuntu-notification-helper muon