Install gir1.2-vte-2.91 by entering the following commands in the terminal:
sudo apt update sudo apt install gir1.2-vte-2.91
Description:
GObject introspection data for the VTE library
This package contains introspection data for VTE, a terminal emulator widget for GTK+. . It can be used by interpreters understanding the GIRepository format to write programs using the VTE widget for GTK+ 3.0.
Homepage: https://wiki.gnome.org/Apps/Terminal/VTE
Version: 0.52.1-1ubuntu1
Section: introspection