找不到符号（它在那里）

我在netbeans的maven项目中有以下行。找不到符号（它在那里）

Projection projection = two.translate(Vector.reg1).projection(direction);

两者是一个Shape实例。

public abstract class Shape { 
    public double mass; 
    public double momentOfIntertia; 
    public Vector center; 
    public abstract List<Edge> normals(Vector direction); 
    public abstract Projection projection(Vector line); 
    public abstract Shape transform(Transformation transformation); 
    public abstract Shape translate(Vector translation); 
    public abstract void render(Graphics graphics); 
}

当我编译我得到这个错误。

[ERROR]BUILD FAILURE 
------------------------------------------------------------------------ 
Compilation failure 

org/curious/pounce/Collision.java:[89,39] cannot find symbol 
symbol : method translate(org.curious.pounce.math.Vector) 
location: class org.curious.pounce.Shape

我不确定这可能是什么问题，如果有什么错误netbeans应该指出在IDE中的错误，它不是。

来源

2011-03-08 HahaHortness