vue+elementUI里面重置表格內(nèi)容的時(shí)候報(bào)錯(cuò)

 handleReset () {
        this.$refs.form.resetFields();
        this.form = {
          activityName: '',
          activityStartTime: new Date(this.$moment().startOf('days').valueOf()),
          activityEndTime: '',
          ticketPublishNum: '',
          activityPublish: {
            beforeDay: 3,
            publishTime: '08:00'
          },
          hotelId:this.$store.state.userInfo.hotelId ? this.$store.state.userInfo.hotelId : 0,
          hotelName:this.$store.state.userInfo.belongName,
          activityDes: ''
        };
        this.smsStatus = 1;
        this.selectTicket = [{id: '', name: ''}];
        this.$refs.grade.reset();
        this.isselected = false;
      },

請(qǐng)問問題出在什么地方？