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I just ran the following command without fully knowing what it would do:

sudo pacman -S packagekit-qt6 flatpack fwupd

And now my KDE Discover Store is broken. Whenever I try to update something in KDE Discover, I get the following error popups:

Update Issue

The PackageKit daemon has crashed

The PackageKit daemon has crashed

Can someone please help me how to remove this and revert back to before? I need my KDE Discover to work again.

I tried searching and found to run sudo pacman -R packagekit-qt6, but that didn't work. I get the following errors:

error: cachyos-znver4: signature from "CachyOS <[email protected]>" is invalid error: cachyos-core-znver4: signature from "CachyOS <[email protected]>" is invalid error: cachyos-extra-znver4: signature from "CachyOS <[email protected]>" is invalid error: cachyos: signature from "CachyOS <[email protected]>" is invalid error: failed to init transaction (unable to lock database) error: could not lock database: File exists if you're sure a package manager is not already running, you can remove /var/lib/pacman/db.lck
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3

Someone from the CachyOS team managed to help me and this was his exact response:

anything with packagekit backend cannot be used on Arch-based distros. due to breaking the system, we banned that for handheld edition and should do the same for desktop

to fix that run:

sudo rm -f /var/lib/pacman/db.lck sudo pacman -Rsn packagekit-qt6 sudo pacman -Scc sudo pacman-key --recv-keys F3B607488DB35A47 --keyserver keyserver.ubuntu.com sudo pacman-key --lsign-key F3B607488DB35A47
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