Install gir1.2-gsystem-1.0 by entering the following commands in the terminal:
sudo apt update sudo apt install gir1.2-gsystem-1.0
Description:
GIO-based library targetd as OS components (introspection)
LibGSystem is a deprecated library used by OS components such as OSTree. Parts of its functionality have moved into GLib; other parts of its functionality have moved into the libglnx submodule. . This package can be used by other packages using the GIRepository format to generate dynamic bindings.
Homepage: https://wiki.gnome.org/Projects/LibGSystem
Version: 2015.2+deb-4
Section: universe/introspection