Install squeak-plugins-scratch-dbg by entering the following commands in the terminal:
sudo apt update sudo apt install squeak-plugins-scratch-dbg
Description:
Squeak plugins for the Scratch programming environment - debug
Scratch is an easy, interactive, collaborative programming environment designed for creation of interactive stories, animations, games, music, and art -- and sharing these on the web. . This package contains the debugging symbols for the plugins.
Homepage: http://info.scratch.mit.edu/Scratch_on_Linux
Version: 1.4.0.2~svn.r83-2.1
Section: universe/debug