I recently installed LXDE as an experiment, and in switching back and forth between desktops, I now find that when I am back running XFCE as normal that my apt-notifier icon no longer seems to work properly. I can click on it, it pops up, and I see the upgrades, but when I click the button to upgrade it does not ask for root permissions and just seems to stop.
I started apt-notifier from terminal and get this output:
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$ apt-notifier
ddd@lenovosl410:~
$ qt5ct: using qt5ct plugin
qt5ct: D-Bus system tray: no
inotify_add_watch("/home/ddd/.config/qt5ct/") failed: "No such file or directory"
/tmp/tmppjx_sD: line 91: kde4-config: command not found
/tmp/tmppjx_sD: line 91: kdesu: command not found
$
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$ sudo apt-notifier
$ /tmp/tmpnJWU1H: line 91: kde4-config: command not found
/tmp/tmpnJWU1H: line 91: kdesu: command not found
/tmp/tmpx_0QMZ: line 91: kde4-config: command not found
/tmp/tmpx_0QMZ: line 91: kdesu: command not found
I'm not sure how to get this kdesu command working as it is not installable itself (apt get install kdesu doesn't work)
Can anyone suggest a remedy?
thanks very much.