module.exports = {
    // 修改 src 为 examples
    pages: {
      index: {
        entry: 'examples/main.js',
        template: 'public/index.html',
        filename: 'index.html'
      }
    },
    // 强制内联CSS
    css: { extract: false },
    // 扩展 webpack 配置，使 packages 加入编译
    chainWebpack: config => {
      config.module
        .rule('js')
        .include
          .add(__dirname + 'packages')
          .end()
        .use('babel')
          .loader('babel-loader')
          .tap(options => {
            // 修改它的选项...
            return options
          })
    }
  }

其中 ：.add(‘packages’)改为 .add(__dirname + ‘packages’)
上种情况是在按照这个配置之后 https://www.jb51.net/article/148692.htm 的报错的处理

403 Forbidden - PUT http://registry.npmjs.org/custom-el-ui - You cannot publish over the previously published versions: 0.1.0.
npm ERR! 403 In most cases, you or one of your dependencies are requesting
npm ERR! 403 a package version that is forbidden by your security policy.

再次发布版本报错，在package.json里面手动改版本