请问这个错是什么原因，代码如下：
let rotation = cc.rotateTo(0.3, 0, 30);
this.capNode.runAction(rotation);
然后运行报错：
TypeError: this._quat.getEulerAngles is not a function
at cc_Node. (polyfill-3d.js:234)
at cc_RotateTo.startWithTarget (CCActionInterval.js:943)
at 7.cc.ActionManager.addAction (CCActionManager.js:138)
at cc_Node.42.NodeDefines.runAction (CCNode.js:1915)
at ShaiZiAnimation.ts:76
at cc_CallFunc.execute (CCActionInstant.js:478)
at cc_CallFunc.update (CCActionInstant.js:483)
at cc_Sequence.update (CCActionInterval.js:427)
at cc_Sequence.step (CCActionInterval.js:162)
at 7.cc.ActionManager.update (CCActionManager.js:425)