Messages I get from Discover in Kubuntu
 

Hi All
NAME="Ubuntu"
VERSION="20.04.1 LTS (Focal Fossa)"

Running on a Dell Optiplex

~$ lscpu
Architecture: *******************x86_64
CPU op-mode(s): *****************32-bit, 64-bit
Byte Order: *********************Little Endian
Address sizes: ******************36 bits physical, 48 bits virtual
CPU(s): *************************4
On-line CPU(s) list: ************0-3

When I start 'Discover', it presents this message in the attached picture.

All advice welcome.
Regards

Chris

The message means the PPA nvbn-rm/ppa doesn't provide packages for Focal. Probably a leftover from an in-place upgrade. Remove it:

thank you Shruggy, I'll try that.

Sounds like you have Kubuntu 20.04.

To remove software sources on Kubuntu 20.10
Start -> Applications -> Settings -> System Settings
-On the left side, click on Driver Manager
-It will ask for the admin pwd
-A window will open with title Software Sources
-Click on the Other Software tab
-Choose a line from the list. You can uncheck it or at the bottom, click on the Remove button
-Click Close button at the bottom right

thank you vmelkon