connect连接函数ambiguous错误怎么办？

[Tom199818]

connect(timeline, SIGNAL(finished()), this , SLOT(endAnimation()));

error: reference to 'connect' is ambiguous

如果我把这一行注释掉，则会提示
Error: Undefined interface
Makefile:714: recipe for target 'moc_gamescene.cpp' failed

显示错误行为

Q_INTERFACES(QGraphicsScene);

头文件大致内容：

#ifndef GAMESCENE_H
#define GAMESCENE_H
#include <QGraphicsScene>
#include <QSize>
#include <QGraphicsView>
#include <QString>
#include <QGraphicsRectItem>
#include <QGraphicsTextItem>
#include <QList>
#include <QPropertyAnimation>
#include <QGraphicsItemAnimation>
#include <QTime>
#include <QTimeLine>
#include <QApplication>
#include <QObject>
class GameScene :public QObject, public QGraphicsScene
{
    Q_OBJECT
    Q_INTERFACES(QGraphicsScene)
public:
    void *****()
private:
     *****

private slots:
   void endAnimation();
};

#endif // GAMESCENE_H

[冷静忍耐]

QGraphicsScene本来就是继承QObjet的，只要继承QGraphicsScene，不用再继承QObjet了吧 Q_INTERFACES这个？？你是要做插件？？

[beyondma]

就是有歧义了，加上类名就好了

[GreenArrowMan]

继承了QObject两次，不知道调用哪一个。。就像一楼说的。 要想确定使用QGraphicsScene::connect或者QObject::connect这样就好了