Using this thread - none of it worked for me: How can I "provide proper authorization" to the KDE Software Updates program?
However when I click on Updates then it starts checking for any and shows them. I click on Install and it still shows: This operation cannot continue since proper authorization was not provided.
This used to work and prompt me for password.
I have: Kubuntu 18.04, KDE Plasma Ver: 5.12.7
Any guidance would be appreciated.
sudo apt update
andsudo apt full-upgrade
from a terminal. Is that successful? Do you see any messages / warnings / errors while doing so? Then runsudo apt install kubuntu-desktop
in case you've accidentally deleted something that Discover needs. Then, runplasma-discover
from a terminal to see if things are fixed; if not, the terminal output may provide you with clues. – DK Bose May 21 '19 at 01:29