Install libqt5xdg3 by entering the following commands in the terminal:
sudo apt update sudo apt install libqt5xdg3
Description:
Implementation of the XDG Specifications for Qt (shared lib)
This library implements functions of the XDG Specifications in Qt. It is part of LXQt. . This package provides the shared library.
Homepage: https://github.com/lxde/libqtxdg
Version: 3.1.0-5build2
Section: universe/libs