Creator 的暂停动作问题

this.mStart= this.node.getChildByName("Image1_Start");
ScreenMove= cc.repeatForever(cc.sequence(cc.moveTo(100, cc.p(-10000, 0))))
this.mStart.runAction(ScreenMove);
.............

var actionManager = cc.director.getActionManager();
actionManager.pauseTarget(this.mStart.node);

仍然没效啊.动作正常运行.
我的creator版本是1.2.1 rc1