小程序后台已开通人脸核身，但是在真机调试时调用wx.startFacialRecognitionVerify时报错

{"errMsg": "startFacialRecognitionVerify:fail jsapi has no permission, event=startFacialRecognitionVerify, runningState=foreground, permissionMsg=permission got, detail=jsapi has no permission", "errno": 102}