TypeError: Cannot read properties of undefined (reading 'echarts')

文档：Cannot read properties of undefined ...
链接：http://note.youdao.com/noteshare?id=008ee959668d2a756f212bfcd95a3e61&sub=8DE8B87E9E534EB19E133E65D8B6CF5E

项目可以运行，但是想移植到自己的项目里的时候，报错
引入这个的时候
../src/common/map/fujian.js 
root 是undefined
请问有没有什么思路，是哪里没有配置好。。

app.js:957 
        
       TypeError: Cannot read properties of undefined (reading 'echarts')
    at eval (fujian.js?72f2:35:1)
    at eval (fujian.js?72f2:37:1)
    at Module../src/common/map/fujian.js (1.js:737:1)
    at __webpack_require__ (app.js:833:30)
    at fn (app.js:130:20)
    at eval (cjs.js?!./node_modules/babel-loader/lib/index.js!./node_modules/cache-loader/dist/cjs.js?!./node_modules/vue-loader/lib/index.js?!./src/common/echart/index.vue?vue&type=script&lang=js&:4:72)
    at Module../node_modules/cache-loader/dist/cjs.js?!./node_modules/babel-loader/lib/index.js!./node_modules/cache-loader/dist/cjs.js?!./node_modules/vue-loader/lib/index.js?!./src/common/echart/index.vue?vue&type=script&lang=js& (1.js:23:1)
    at __webpack_require__ (app.js:833:30)
    at fn (app.js:130:20)
    at eval (index.vue?717c:1:1)

我文件基本都复制了

main.js

```js

import Vue from 'vue';
import App from './App.vue';
import router from './router';
import ElementUI from 'element-ui';
import VueI18n from 'vue-i18n';
import { messages } from './components/common/i18n';
import 'element-ui/lib/theme-chalk/index.css';
import './assets/css/icon.css';
import './assets/icon/iconfont.css'
import './components/common/directives';
import 'babel-polyfill';
import axios from 'axios'
import api from './assets/js/api'

import dataV from '@jiaminghi/data-view';
// 引入全局css
import './assets/scss/style.scss';
// 按需引入vue-awesome图标
import Icon from 'vue-awesome/components/Icon';
import 'vue-awesome/icons/chart-bar.js';
import 'vue-awesome/icons/chart-area.js';
import 'vue-awesome/icons/chart-pie.js';
import 'vue-awesome/icons/chart-line.js';
import 'vue-awesome/icons/align-left.js';
// import dataV from '@jiaminghi/data-view';
//引入echart
//4.x 引用方式
import echarts from 'echarts'
//5.x 引用方式为按需引用
//希望使用5.x版本的话,需要在package.json中更新版本号,并切换引用方式
//import * as echarts from 'echarts'
Vue.prototype.$echarts = echarts
// Vue.config.productionTip = false;

// 全局注册
Vue.component('icon', Icon);
Vue.use(dataV);

Vue.prototype.$axios = axios
Vue.config.productionTip = false;
Vue.use(VueI18n);

Vue.use(ElementUI, {
    size: 'small'
});

new Vue({
    router,
    i18n,
    render: h => h(App)
}).$mount('#app');

```

奔跑的面条/vue-big-screen-plugin

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奔跑的面条/vue-big-screen-plugin .gitee-modal { width: 500px !important; }

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