说是字段不存在的错误

零度的花火

#1 Created at ... [Delete] [Delete and Lock User]

运行后报错：

Exception in thread "main" java.lang.Error: Unresolved compilation problems:

Unhandled exception type NoSuchFieldException

Unhandled exception type IllegalAccessException

包也导入了，在eclipse中相应的行显示Unhandled exception type NoSuchFieldException,问题是这个字段是有的啊，并且用的是 c.getDeclaredField("name");并不存在private的问题，为什么呢

package com.itranswarp.learnjava;
import java.lang.reflect.Field;
/**
 * Learn Java from https://www.liaoxuefeng.com/
 * 
 * @author liaoxuefeng
 */
public class Main {

	public static void main(String[] args) {
		String name = "Xiao Ming";
		int age = 20;
		Person p = new Person();
		// TODO: 利用反射给name和age字段赋值:
		Class c = p.getClass();
		System.out.println(p.getName()); // "Xiao Ming"
		System.out.println(p.getAge()); // 20
		Field ppname = c.getDeclaredField("name");
		Field ppage = c.getDeclaredField("age");
		ppname.setAccessible(true);
		ppage.setAccessible(true);
		ppname.set(c, name);
		ppage.set(c, age);
		System.out.println(p.getName()); 
		System.out.println(p.getAge()); 
	}
}