java - The method parse(FileReader) is undefined for the type JSONParser

Question

I have problem in my java class when I try to read from json file it;s show me this error : Note : I installed json-simple and use it succeufuly

Exception in thread "main" java.lang.Error: Unresolved compilation problem: The method parse(FileReader) is undefined for the type JSONParser

at com.cd.JSONParser.main(JSONParser.java:18)

this is my code :

    package com.cd;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.Iterator;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

public class JSONParser {
     public static void main(String[] args) {

            JSONParser parser = new JSONParser();

            try {

                Object obj = parser.parse(new FileReader("g:\\testm1.json"));

                JSONObject jsonObject = (JSONObject) obj;

                String name = (String) jsonObject.get("name");
                System.out.println(name);

                long age = (Long) jsonObject.get("age");
                System.out.println(age);

                // loop array
                JSONArray msg = (JSONArray) jsonObject.get("messages");
                Iterator<String> iterator = msg.iterator();
                while (iterator.hasNext()) {
                    System.out.println(iterator.next());
                }

            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (ParseException e) {
                e.printStackTrace();
            }

             }

    }