I had a fully updated F19 system which had only KDE desktop installed. I ran
fedup-cli --network 20 and everything completed.
When I logged in to KDE I got a dialog box indicating something was needed by plasma. (Silly me, I didn't write down the exact message thinking it would just work... :-) )
I clicked "OK" to resolve the issue and after minutes of gyration the message....
"Could not find service in any configured software source".
I don't know what is needed or why it wasn't found.... How to figure it out?