Udo Höfel

> code > > ```java > now, i don't konw how to use ijava to complete a class. > such as: > > public class Puppy{ > public Puppy(String name){...

I doubt that this is related to Java 15. Do you have python3 available in your command line? Sounds like no python is installed.

Nice to hear :+1: There is a thread on stackexchange mentioning some of the problems: http://tex.stackexchange.com/questions/152714/possible-to-use-mnsymbol-with-luatex