1.使用elementui plus版本实现按需加载组件会报错

Error: Cannot find module 'babel-preset-es2015' from 'D:\danzhukeji\danzhu\my_pp\src'

这样的情况下

{
  "presets": [["es2015", { "modules": false }]],
  "plugins": [
   [
    "component",
    {
     "libraryName": "element-plus",
     "styleLibraryName": "theme-chalk"
    }
   ]
  ]
 }

换成下面这样无需安装任何插件依赖即可

{
  "presets": [["@babel/preset-env", { "modules": false }]],
  "plugins": [
   [
    "component",
    {
     "libraryName": "element-plus",
     "styleLibraryName": "theme-chalk"
    }
   ]
  ]
 }