I am trying to write a parser but I got these errors:

Asked Apr 20 '18 at 19:43

Active Apr 20 '18 at 19:44

Viewed 30 times

I am trying to write a parser but after I did javac ProgramParser*.java I got these errors:

error: package org.antlr.v4.runtime does not exist

import org.antlr.v4.runtime.ParserRuleContext;

ProgramParserBaseListener.java:4: error: package org.antlr.v4.runtime.tree does not exist

import org.antlr.v4.runtime.tree.ErrorNode;
ProgramParserBaseListener.java:5: error: package org.antlr.v4.runtime.tree does not exist

import org.antlr.v4.runtime.tree.TerminalNode;
ProgramParserListener.java:2: error: package org.antlr.v4.runtime.tree does not exist

import org.antlr.v4.runtime.tree.ParseTreeListener;

Any idea why and what I should do to fix this?

edited Apr 20 '18 at 19:44

Sean Bright

118,630
17
138
146

asked Apr 20 '18 at 19:43

ddd

Seems like you are missing some relevant jar on your classpath. – Turing85 Apr 20 '18 at 19:45
I did this before java -jar /usr/local/lib/antlr-4.7.1-complete.jar ProgramParser.g4 and it worked, I got no errors – ddd Apr 20 '18 at 19:46
1

https://github.com/antlr/antlr4/blob/master/doc/faq/installation.md#why-doesnt-my-parser-compile – Victor Apr 20 '18 at 19:51
Used the link and it worked, thank you so much! – ddd Apr 20 '18 at 20:08

I am trying to write a parser but I got these errors:

0 Answers0