Install libdevhelp-3-5 by entering the following commands in the terminal:
sudo apt update sudo apt install libdevhelp-3-5
Description:
Library providing documentation browser functionality
This library provides embedable widgets from the Devhelp program to be integrated in tools like the Anjuta IDE for browsing API reference documentation.
Homepage: https://wiki.gnome.org/Apps/Devhelp
Version: 3.28.1-1
Section: libs