vue+webpack5：If you want to include a polyfill, you need to

升级@vue/cli 5.0.1，发现 const path = require("path")异常

发现默认webpack 是，提示v5区别于v4不再自动引入Polyfills，需要手动添加

按照控制台提示

1、安装path-browserify

npm install path-browserify

2、在vue.config.js文件中配置

 configureWebpack() {
    return {
      resolve: {
        alias: {
          "@": resolve("src"),
        },
        fallback: {
          path: require.resolve("path-browserify"),
        },
      },
    }
  },