I experienced this problem with konversation, but while searching for a solution, I saw that many people were having this problem with many different KDE programs, so I thought I'd bring it up here
I'm running lubuntu (a GTK based distribution), but I run several KDE programs, including konversation. When I was running 14.10, konversation worked without issue, but when I upgraded to to 15.04, I was no longer able to right click and save links. When I tried, I received the following message:
could not start process cannot talk to klauncher the name org.kde.klauncher5 was not provided by any .service files
How can I solve this problem and be able to right-click and save links again?