Install gir1.2-gegl-0.3 by entering the following commands in the terminal:
sudo apt update sudo apt install gir1.2-gegl-0.3
Description:
GObject introspection data for the Generic Graphics Library
GEGL (Generic Graphics Library) is a graph based image processing framework. . GEGL's original design was made to scratch GIMP's itches for a new compositing and processing core. This core is being designed to have minimal dependencies and a simple well defined API. . This package contains introspection data for the library. . It can be used by packages using the GIRepository format to generate dynamic bindings.
Homepage: http://gegl.org/
Version: 0.3.30-1ubuntu1
Section: universe/introspection