Install libdockapp-dbg by entering the following commands in the terminal:
sudo apt update sudo apt install libdockapp-dbg
Description:
Window Maker Dock App support (debugging symbols)
Simple library that eases the creation of Window Maker dock apps. It provides functions that set up a dock app in such a way that they can be properly docked. It also provides some event handlers and makes it very simple to write dockapps. . This package contains the debugging symbols.
Homepage: http://windowmaker.org/dockapps/?name=libdockapp
Version: 1:0.7.2-1
Section: universe/debug