webpack打包报错Plugin/Preset files a

打包报错Plugin/Preset files are not allowed to export objects, only functions

ERROR in ./src/index.js
Module build failed (from ./node_modules/babel-loader/lib/index.js):
Error: Plugin/Preset files are not allowed to export objects, only functions. In /Users/xxx/node_modules/babel-preset-es2015/lib/index.js

我的.babelrc文件是

{
  "presets": ["es2015"],
  "plugins": [
    [ "transform-runtime", {
      "helpers": false,
      "polyfill": false
      }
    ]
  ]
}

webpack.config.js配置是

'use strict'

const path = require('path')
const webpack = require('webpack')
const UglifyJsPlugin = require('uglifyjs-webpack-plugin')

const resolve = dir => path.join(__dirname, '.', dir)
const isProd = process.env.NODE_ENV === 'production'
module.exports = {
  entry: {
    index: './src/index.js'
  },
  output: {
    path: isProd?resolve('dist'): resolve(''), // 输出目录
    filename: isProd?'[name].min.js':'[name].js', // 输出文件
    libraryTarget: 'umd', // 采用通用模块定义
    library: 'lagou-bridge-sdk', // 库名称
    libraryExport: 'default', // 兼容 ES6(ES2015) 的模块系统、CommonJS 和 AMD 模块规范
    globalObject: 'this' // 兼容node和浏览器运行，避免window is not undefined情况
  },
  devtool: '#source-map',
  devServer: {
    hot: true,
    // ...
  },
  module: {
    rules: [
      {
        test: /\.(js)$/,
        loader: 'eslint-loader',
        enforce: 'pre',
        include: [resolve('src'), resolve('test')],
        options: {
          formatter: require('eslint-friendly-formatter')
        }
      },
      {
        test: /\.js?$/,
        exclude: /(node_modules|dist)/,
        loader: 'babel-loader',
        
      }
    ]
  },
  plugins: isProd
    ? [
      new UglifyJsPlugin({
        parallel: true,
        uglifyOptions: {
          warnings: false,
          mangle: true
        },
        sourceMap: true
      }),
    ]
    : [
      new webpack.NamedModulesPlugin(),
      new webpack.NoEmitOnErrorsPlugin()
    ]
}

我的.babelrc文件修改去掉es2015

{
  "presets": ["@babel/preset-env"],
  "plugins": [
    [ "transform-runtime", {
      "helpers": false,
      "polyfill": false
      }
    ]
  ]
}

报错

ERROR in ./src/index.js
Module build failed (from ./node_modules/babel-loader/lib/index.js):
TypeError: /Users/xxx/src/index.js: this.setDynamic is not a function

把babelrc文件修改去掉plugins,修改为编译成功

  "presets": ["@babel/preset-env"],