I am using Mac OS.
I used command pip install antlr4-tools which successfully installed. Then when I run command antlr4, I am getting message:
Could not get latest version number, attempting to fall back to latest downloaded version...
Found version '4.9.3', this version may be out of date
Could not find antlr4-4.9.3-complete.jar at maven.org
Does anybody know where could be the problem and how to fix it?