Install libgconf2-4 by entering the following commands in the terminal:
sudo apt update sudo apt install libgconf2-4
Description:
GNOME configuration database system (dummy package)
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 is here to ensure smooth upgrades. It can be removed when you see fit.
Homepage: http://projects.gnome.org/gconf/
Version: 3.2.6-4ubuntu1
Section: universe/libs