[Solved] Having trouble removing a non-working application from KDE Application Launcher
History:
When trying to adjust the appearance of my KDE Neon setup, I made a mistake and now I can't figure out how to undo it. I was editing the applications in the stock Application Launcher. I can't remember exactly what I did, but I made a second entry to an application (Ferdium) that was already installed and tweaked the "Program:" entry for it. Since then, I haven't been able to use it. I even uninstalled the app, which removed the original application item, but I can't remove the copied version.
Problem:
When I click on it in the KDE Menu Editor, it immediately crashes the editor and suggests that I report a bug. The bug error details read "Executable: kmenuedit PID: 3,152 Signal: Segmentation fault (11) Time: 10/25/23 6:16 PM". I've submitted the bug, but haven't heard anything about it in weeks. I might have submitted it without contact information, and if I try to resubmit it, it appropriately prevents me from submitting the bug again.
When I click on the application entry as if it to open it, I get an error stating, "execvp: No such file or directory".
Any ideas on how I can remove the application from my application menu?
Check if there is the desktop file of the entry you created in ~/.local/share/application, and if you find it remove it, then reboot (or log out and in) to check if it fixed the problem