Install libdbusmenu-jsonloader4 by entering the following commands in the terminal:
sudo apt update sudo apt install libdbusmenu-jsonloader4
Description:
library for passing menus over DBus - Test lib
libdbusmenu passes a menu structure across DBus so that a program can create a menu simply without worrying about how it is displayed on the other side of the bus. . This package contains shared libraries to be used by test suites in applications or libraries using dbusmenu.
Homepage: https://launchpad.net/dbusmenu
Version: 16.04.1+18.04.20171206-0ubuntu1
Section: libs