编译通过.但运行时出现NoSuchMethodError.高手帮查错.

[迷路滴喵]

程序如下.

class Person{
	private String name;
	private String location;
	
	Person(String n,String l){
		name = n;
		location = l;
		}
		
	Person(String n){
		name = n; 
                location = "beijing";
		}
	
	public String info() {
		return "name=" + name + ",location=" + location;
		}
	}

class Teacher extends Person{
	private String title;
	
	Teacher(String n, String l, String t){
		super(n,l);
		title = t;
		}
	
	Teacher(String n,String t){
		this(n,"beijing",t);
		}
		
	public String info() {
		return super.info() + ",title=" + title;
		}
	}
	
public class TestTeacher{
	public static void main(String[] args){
		Teacher t1 = new Teacher("A","professor");
		System.out.println(t1.info());
		}
	}

编译并没出错...但是运行出出现 Exception in thread "main" java.lang.NoSuchMethodError:Person.<init><Ljava/lang/String;>V
at Teacher.<init><TestTeacher.java:23>
at Teacher.<init><TestTeacher.java:28>
at Teacher.<init><TestTeacher.java:38>
我看提示...应该是没找到Person类?我明明给出了Person类的构造方法了啊?而且编译也并没有出错?

[gfaz2007]

我运行啦,没问题啊??