不断收到来自道具的对象值的“ TypeError：无法读取未定义的属性” 1”

Question

我的Redux商店中存储了一个数据对象。但是，当我尝试导入PieChart组件的值时，这些值始终变得不确定。

import React, { Component } from 'react';
import { PieChart, Pie, Legend, ResponsiveContainer } from 'recharts';

import PropTypes from 'prop-types';
import { connect } from 'react-redux';

class PieCharts extends Component {
    render () {
    const {
      user: {
        credentials: Questions
      }
    } = this.props;

    console.log(Questions);

    this.Section1 = Questions[1];
    this.Section2 = Questions[2] || 5000;
    this.Section3 = Questions[3][1] || 0;
    this.Section4 = Questions[3][2] || 0;
    this.Section5 = Questions[3][3] || 0;

    this.data1  = [
                {name: 'Sec1', value: this.Section1},
                {name: 'Sec2', value: this.Section2},
                {name: 'Sec3', value: this.Section3},
                {name: 'Sec4', value: this.Section4},
                {name: 'Sec5', value: this.Section5},
                ];
    return (
      <React.Fragment>
        <ResponsiveContainer width='100%' height='100%'>
      <PieChart >
        <Legend iconSize={10}
                layout='horizontal'
                verticalAlign='bottom'
                // wrapperStyle={this.style}
                />
        <Pie
          data= {this.data1}
          cx='50%'
          cy='50%'
          innerRadius='20%'
          outerRadius="100%"
          >
        </Pie>
      </PieChart>
      </ResponsiveContainer>
      </React.Fragment>
    );
  }
};

const mapStateToProps = (state) => ({
  user: state.user
});

PieCharts.propTypes = {
  user: PropTypes.object.isRequired
}

export default connect(mapStateToProps)(PieCharts);

但是我的console.log在控制台中显示了带有值（也有一些嵌套数组）的对象。密钥只是数字（1到5），是问题吗？