SUMMARY Error when trying to uninstall apps, or open Discover app listing in from kickoff : `Unable to create KIO worker. Unknown protocol 'appstream'.` Desktop was upgraded from Plasma 5.27 (worked fine) to 6.0 (broken) STEPS TO REPRODUCE 1. Open kickoff 2. search for an app (eg. 'libresprite') 3. select "install X" OBSERVED RESULT Unable to create KIO worker. Unknown protocol 'appstream'. -- dialog box EXPECTED RESULT Opens app listing in discover SOFTWARE/OS VERSIONS `$ neofetch --off` OS: KDE neon 6.0 x86_64 Host: 83AM Lenovo IdeaPad Pro 5 14APH8 Kernel: 6.5.0-18-generic Uptime: 31 mins Packages: 2376 (dpkg), 23 (flatpak), 7 (snap) Shell: bash 5.1.16 Resolution: 2880x1800 DE: Plasma 6.0.0 WM: kwin WM Theme: Breeze Theme: [Plasma], Breeze-Dark [GTK2], Breeze [GTK3] Icons: breeze-dark [Plasma], breeze-dark [GTK2/3] Terminal: konsole CPU: AMD Ryzen 7 7840HS (16) @ 5.137GHz GPU: AMD ATI 63:00.0 Device 15bf Memory: 3165MiB / 27736MiB ADDITIONAL INFORMATION I trigged the error a few times and copied the result of `journalctl` since boot. https://pastebin.com/2AEwH9sG
*** This bug has been marked as a duplicate of bug 481932 ***