Install auto-complete-el by entering the following commands in the terminal:
sudo apt update sudo apt install auto-complete-el
Description:
transitional package for elpa-auto-complete
This is a transitional package for elpa-auto-complete and can be safely removed after ainstallation.
Homepage: https://github.com/auto-complete/auto-complete
Version: 1.5.1-0.1
Section: universe/lisp