i got too the polib error . yay python-polib and then yay dockbarx solved it . no reinstalling. now dockx is building and running again .
edit: sorry . i forget another 'Trick' . yay -S $(pacman -Qmq | grep python)
its an old post from manjaro https://forum.manjaro.org/t/testing-update-2020-12-07-breakage-expected-kernels-mesa-20-3-python-3-9-pamac-10/41743/24
Pinned Comments
twa022 commented on 2020-08-02 19:13 (UTC)
Package is updated to the new python3 / GTK3 port. Please read the configuration migration instructions to migrate your settings from 0.93 (from the README at https://github.com/M7S/dockbarx/tree/pygi-python3)
Window previews work on all display managers now, not just compiz.
If you are using dockbarx as an xfce4-panel plugin, be sure to update xfce4-dockbarx-plugin as well.