After upgrading Kubuntu from 18.04 to 18.10 and that to Plasma 5.14.5 through the "backports" PPA I am lucky enough to face almost no bugs, except annoying notifications saying "kdeinit5 closed unexpectedly"
It happens when I take some normal actions in Dolphin: start a new window, new tab, split, refresh.
It seems to me that those actions are related to the Dolphin window; creating a new folder or deleting something doesn't trigger the error.
I read here that kdeinit5 is a process launcher that executes KDE programs and kdeinit loadable modules (KLMs) starting them more efficiently. Using kdeinit5 to launch KDE applications makes starting a typical KDE application a couple times faster and reduces memory consumption by a substantial amount. - But as far as I can tell only Dolphin reports a problem with that.
I have not noticed Dolphin operation or that of any part of the desktop being affected at all by this, I would just like to avoid seeing those notifications.
Of course, I would like to have a solution that would avoid the error in the first place, but - if that is not possible until a future update etc - I am mainly asking here for a way to simply make those notifications go away.
I don't know how to debug this, or if the following is useful, but running kdeinit5 dolphin the file manager starts with the usual error while in terminal I get this:
~$ Trying to convert empty KLocalizedString to QString. qt.accessibility.core: Cannot create accessible child interface for object: PlacesView(0x55d3d75565c0) index: 14 kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/trash.so' from launcher. kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/trash.so' kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' from launcher. kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' from launcher. kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so' from launcher. kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so' kf5.kio.trash: Root trash dir "/media/cip/DEPO/.Trash" exists but didn't pass the security checks, can't use it kf5.kio.trash: Directory "/media/cip/DEPO/.Trash-1000" exists but didn't pass the security checks, can't use it Qt: Session management error: networkIdsList argument is NULL Could not find video stream decodeVideoFrame() failed: frame not finished KCrash: crashing... crashRecursionCounter = 2 KCrash: Application Name = kdeinit5 path = /usr/bin pid = 12077 KCrash: Arguments: /usr/bin/kdeinit5 thumbnail local:/run/user/1000/klauncherFKnizM.1.slave-socket local:/run/user/1000/dolphinFjEuPw.5.slave-socket KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit sock_file=/run/user/1000/kdeinit5__0 kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/libexec/drkonqi' from wrapper. kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/libexec/drkonqi' kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so' from launcher. kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/thumbnail.so' Qt: Session management error: networkIdsList argument is NULL 
