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echarts报错,Uncaught Error: series.type should be specified?

先贴上我的代码：

<el-row>
      <el-col :span='24'>
        <el-card>
          <div slot="header">某周网站访客来源分析</div>
          <div ref="A"
               :options="optionsA"
               style="width: 100%; height: 400px"></div>
        </el-card>
      </el-col>
    </el-row><br><br>mounted () {
    this.drawEchar();
  },
  methods: {
    drawEchar () {
      const chartA = this.$echarts.init(this.$refs['A']);
      chartA.showLoading();
      reqGetEchartsBar().then(data => {
        if (data.code === 200) {
          const options = data.data;
          // chartA.setOption(this.optionsA)
          chartA.setOption({
            type: 'bar',
            series: options.bar.optionsA.series
          });
          setTimeout(() => {
            chartA.hideLoading();
          }, 1000)
        } else {
          chartA.hideLoading();
        }
      }).catch(err => {
        chartA.hideLoading();
        console.log(err);
      })
    }