升级echarts v5.0以后vue项目报错“export ‘default‘ (imported as ‘echarts‘) was not found in ‘echarts‘

看到这个报错，我的心情是这样的 

只需要在main.js里面重新修改引入echarts的方式

//引入Echarts【安装方法】cnpm i echarts -S
import * as echarts from 'echarts';
//或者 const echarts = require('echarts');
Vue.prototype.$echarts = echarts;

关键代码

import * as echarts from 'echarts';

或

const echarts = require('echarts');

总算运行起来了