How to build the grammar files separately? about batfish HOT 4 CLOSED

cd projects/batfish/
mvn compile

[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building batfish 0.28.1
[INFO] ------------------------------------------------------------------------
[WARNING] The POM for org.batfish:batfish-common-protocol:jar:0.28.1 is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.689 s
[INFO] Finished at: 2017-07-11T16:04:21+08:00
[INFO] Final Memory: 8M/155M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project batfish: Could not resolve dependencies for project org.batfish:batfish:jar:0.28.1: Failure to find org.batfish:batfish-common-protocol:jar:0.28.1 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException

cd projects/
mvn compile
mvn install
cp /Users/work/.m2/repository/org/batfish/allinone/0.28.1/allinone-0.28.1.jar $MYPROJECT/lib

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

import java.io.File;
import java.io.FileInputStream;

import org.batfish.grammar.cisco.*;

public class Demo {
    public static void main(String args[]) {
        try {
            File file = new File("/Users/work/dev/g4/cisco-host/test.txt");

            // create a CharStream that reads from standard input
            ANTLRInputStream input = new ANTLRInputStream(new FileInputStream(file)); // create a lexer that feeds off of input CharStream
            CiscoLexer lexer = new CiscoLexer(input); // create a buffer of tokens pulled from the lexer
            CommonTokenStream tokens = new CommonTokenStream(lexer); // create a parser that feeds off the tokens buffer
            CiscoParser parser = new CiscoParser(tokens);
            ParseTree tree = parser.s_object(); // begin parsing at init rule

            ParseTreeWalker walker = new ParseTreeWalker();
            walker.walk(new Loader(), tree);

        }catch(Exception e) {
            System.out.println(e.toString());
        }

    }
}

import org.batfish.grammar.cisco.CiscoParser;
import org.batfish.grammar.cisco.CiscoParserBaseListener;

import java.util.*;

/**
 * Created by work on 2017/7/7.
 */
public class Loader extends CiscoParserBaseListener{
    public void enterS_object(CiscoParser.S_objectContext ctx) {
        System.out.println("new network object");
    }
}

object network haha
 subnet 192.168.125.0 255.255.255.0
object network hasdfs
 host 192.168.125.125
object network asdfa
 range 192.168.125.2 192.168.125.124
object network asdfs
object network asdfas
 range 192.168.125.2 192.168.125.124
object network range
object network range
object network range
object network range
object network range
object network heeh1
object network sd1
object network range

new network object

objects
:
    (s_object)*
;