报错解决：You may need an additional loader to handle the result of these loaders.

报错信息如下

• vue 项目

Module parse failed: Unexpected token (1:9)
File was processed with these loaders:
 * ./node_modules/@vue/cli-plugin-babel/node_modules/cache-loader/dist/cjs.js
 * ./node_modules/babel-loader/lib/index.js
 * ./node_modules/eslint-loader/index.js
You may need an additional loader to handle the result of these loaders.
> export * as homeApi from './modules/homeDataPanel';
| export * as loginApi from './modules/login';
| export * as collegApi from './modules/basicWork/collegeManger';

根因是：当前webpack/babel 识别不了 export * as x x x from xxxx的语法（export 和 import的组合使用）

解决

npm i @babel/preset-env @babel/plugin-transform-modules-commonjs -D

• 在babel.config.js中配置

module.exports = {
  presets: [
    '@babel/preset-env',
    ...
  ],
  plugins: [
    '@babel/plugin-transform-modules-commonjs',
    ....
  ]
};

或者 在.babelrc中配置

{  
  "presets": ["@babel/preset-env"],  
  "plugins": ["@babel/plugin-transform-modules-commonjs"]  
}