Install smlnj-runtime by entering the following commands in the terminal:
sudo apt update sudo apt install smlnj-runtime
Description:
Standard ML of New Jersey runtime system
SML/NJ is an implementation of the Standard ML programming language. This package includes the runtime system only -- it provides garbage collection and other support for compiled SML programs. . Install this package if you want to run programs compiled with SML/NJ.
Homepage: http://www.smlnj.org/
Version: 110.79-4
Section: universe/devel