Install libgconf-2-4 by entering the following commands in the terminal:
sudo apt update sudo apt install libgconf-2-4
Description:
GNOME configuration database system (shared libraries)
GConf is a configuration database system for storing application preferences. It supports default or mandatory settings set by the administrator, and changes to the database are instantly applied to all running applications. It is written for the GNOME desktop but doesn't require it. . This package contains the shared libraries.
Homepage: http://projects.gnome.org/gconf/
Version: 3.2.6-4ubuntu1
Section: universe/libs