Install cairo-dock-plug-in-data by entering the following commands in the terminal:
sudo apt update sudo apt install cairo-dock-plug-in-data
Description:
Cairo-dock - Plug-in data files
A collection of official plug-ins and applets for cairo-dock. . This package provides plug-in data files.
Homepage: http://www.glx-dock.org/
Version: 3.4.1-2build1
Section: universe/x11