Reactjs 回应通用网页包CSS加载程序问题

是否有人知道此网页错误是由以下原因引起的：

模块生成失败：未知字（2:1）

var content=require（“！！../../../../../../../../../node_modules/css loader/index.js？{\“importLoaders\”：1}./styles.css”）

if（typeof content==='string'）content=[[module.id，content'，']

运行两个webpack实例时会发生这种情况，一个用于客户端，另一个用于服务器。客户端编译正常，但服务器会产生此错误。如果单独运行配置脚本，则不会出现任何问题。我假设同一个CSS文件被处理两次会有某种冲突？我希望能够实现同构样式加载器，但即使使用此加载器替换样式加载器，也会出现错误。任何帮助都将不胜感激，用这个碰壁

start.js

'use strict';

// Do this as the first thing so that any code reading it knows the right env.
process.env.BABEL_ENV = 'development';
process.env.NODE_ENV = 'development';

// Makes the script crash on unhandled rejections instead of silently
// ignoring them. In the future, promise rejections that are not handled will
// terminate the Node.js process with a non-zero exit code.
process.on('unhandledRejection', err => {
  throw err;
});

// Ensure environment variables are read.
require('../config/env');

const { exec } = require('child_process');
const fs = require('fs');
const chalk = require('chalk');
const webpack = require('webpack');
const formatWebpackMessages = require('react-dev-utils/formatWebpackMessages');
const WebpackDevServer = require('webpack-dev-server');
const clearConsole = require('react-dev-utils/clearConsole');
const checkRequiredFiles = require('react-dev-utils/checkRequiredFiles');
const {
  choosePort,
  createCompiler,
  prepareProxy,
  prepareUrls,
} = require('react-dev-utils/WebpackDevServerUtils');
const openBrowser = require('react-dev-utils/openBrowser');
const paths = require('../config/paths');

// const useYarn = fs.existsSync(paths.yarnLockFile);
const isInteractive = process.stdout.isTTY;

// Warn and crash if required files are missing
//if (!checkRequiredFiles([paths.appHtml, paths.appIndexJs])) {
if (!checkRequiredFiles([paths.appIndexJs])) {
  process.exit(1);
}

// Tools like Cloud9 rely on this.
const DEFAULT_CLIENT_PORT = parseInt(process.env.PORT, 10) || 3000;
const DEFAULT_SERVER_PORT = parseInt(process.env.PORT, 10) || 5678;
const HOST = process.env.HOST || '0.0.0.0';

// We attempt to use the default port but if it is busy, we offer the user to
// run on a different port. `detect()` Promise resolves to the next free port.
choosePort(HOST, DEFAULT_CLIENT_PORT)
  .then(port => {
    if (port == null) {
      // We have not found a port.
      return;
    }

    const protocol = process.env.HTTPS === 'true' ? 'https' : 'http';
    const appName = require(paths.appPackageJson).name;
    const urls = prepareUrls(protocol, HOST, port);

    // We do this before importing the wepack.config.client.dev otherwise
    // REACT_APP_CLIENT_PORT won't be set at new webpack.DefinePlugin(env.stringified)
    process.env.REACT_APP_CLIENT_PORT = port
    const configWebpackClient = require('../config/webpack.config.client.dev');

    // Create a webpack compiler that is configured with custom messages.
    // we use different compiler
    //const compiler = createCompiler(webpack, configWebpackClient, appName, urls, useYarn);
    const compiler = webpack(configWebpackClient);

    // Load proxy config
    const proxySetting = require(paths.appPackageJson).proxy;
    const proxyConfig = prepareProxy(proxySetting, paths.appPublic);
    const createDevServerConfig = require('../config/webpackDevServer.config');
    // Serve webpack assets generated by the compiler over a web sever.

    const serverConfig = createDevServerConfig(
      proxyConfig,
      urls.lanUrlForConfig
    );

    const clientServer = new WebpackDevServer(compiler, serverConfig);

    // Launch WebpackDevServer.
    clientServer.listen(port, HOST, err => {
      if (err) {
        return console.log(err);
      }
      if (isInteractive) {
        clearConsole();
      }
      console.log(chalk.cyan(`Starting the client on port ${port}...\n`));

      choosePort(HOST, DEFAULT_SERVER_PORT)
        .then(portServer => {
          if (portServer == null) {
            // We have not found a port.
            return;
          }

          process.env.REACT_APP_SERVER_PORT = portServer;
          const configWebpackServer = require('../config/webpack.config.server');
          const compiler = webpack(configWebpackServer);
          const urls = prepareUrls(protocol, HOST, portServer);
          let isServerRunning;

          compiler.watch({ // watch options:
            aggregateTimeout: 300,
          }, function(err, stats) {

            const messages = formatWebpackMessages(stats.toJson({}, true));

            if (messages.errors.length) {
              console.log(messages.errors.join('\n\n'));
            }

            if (err)
              console.log('error on webpack server', err);

            if (!isServerRunning) {
              isServerRunning = true
              const nodemon = exec('nodemon --watch build/server build/server/bundle.js build/server/bundle.js')

              // This is to outpout in the terminal the child process
              nodemon.stdout.on('data', function (data) {
                console.log(data.toString());
              });
              nodemon.on('exit', function (code) {
                console.log('nodemon process exited with code ' + code.toString());
              });

              console.log(chalk.yellow(`Starting the server on port ${portServer}...\n`));
              // setTimeout(() => { openBrowser(urls.localUrlForBrowser, {app: 'firefoxdeveloperedition'}) }, 1000);
            }
          });
        })
        .catch(err => {
          if (err && err.message) {
            console.log(err.message);
          }
          process.exit(1);
        });
    });
    ['SIGINT', 'SIGTERM'].forEach(function(sig) {
      process.on(sig, function() {
        clientServer.close();
        process.exit();
      })
    });
  })
  .catch(err => {
    if (err && err.message) {
      console.log(err.message);
    }
    process.exit(1);
  });

webpack.config.base.js

'use strict';

const path = require('path');
const webpack = require('webpack');
// const HtmlWebpackPlugin = require('html-webpack-plugin');
// const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
// const InterpolateHtmlPlugin = require('react-dev-utils/InterpolateHtmlPlugin');
// const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
const eslintFormatter = require('react-dev-utils/eslintFormatter');
const ModuleScopePlugin = require('react-dev-utils/ModuleScopePlugin');
const getClientEnvironment = require('./env');
const paths = require('./paths');

const PROD = process.env.NODE_ENV === 'production';

// `publicUrl` is just like `publicPath`, but we will provide it to our app
// as %PUBLIC_URL% in `index.html` and `process.env.PUBLIC_URL` in JavaScript.
// Omit trailing slash as %PUBLIC_PATH%/xyz looks better than %PUBLIC_PATH%xyz.
const publicUrl = '';
// Get environment variables to inject into our app.

const env = getClientEnvironment(publicUrl);

// This is the development configuration.
// It is focused on developer experience and fast rebuilds.
// The production configuration is different and lives in a separate file.
module.exports = {
  bail: PROD,
  // You may want 'eval' instead if you prefer to see the compiled output in DevTools.
  // See the discussion in https://github.com/facebookincubator/create-react-app/issues/343.
  devtool:  PROD ? 'source-map' : 'cheap-module-source-map',
  entry: [],
  output: {},
  resolve: {
    // This allows you to set a fallback for where Webpack should look for modules.
    // We placed these paths second because we want `node_modules` to "win"
    // if there are any conflicts. This matches Node resolution mechanism.
    // https://github.com/facebookincubator/create-react-app/issues/253
    modules: ['node_modules', paths.appNodeModules].concat(
      // It is guaranteed to exist because we tweak it in `env.js`
      process.env.NODE_PATH.split(path.delimiter).filter(Boolean)
    ),
    // These are the reasonable defaults supported by the Node ecosystem.
    // We also include JSX as a common component filename extension to support
    // some tools, although we do not recommend using it, see:
    // https://github.com/facebookincubator/create-react-app/issues/290
    extensions: ['.js', '.json', '.jsx'],
    alias: {

      // Support React Native Web
      // https://www.smashingmagazine.com/2016/08/a-glimpse-into-the-future-with-react-native-for-web/
      'react-native': 'react-native-web',
    },
    plugins: [
      // Prevents users from importing files from outside of src/ (or node_modules/).
      // This often causes confusion because we only process files within src/ with babel.
      // To fix this, we prevent you from importing files out of src/ -- if you'd like to,
      // please link the files into your node_modules/ and let module-resolution kick in.
      // Make sure your source files are compiled, as they will not be processed in any way.
      new ModuleScopePlugin(paths.appSrc),
    ],
  },
  module: {
    strictExportPresence: true,
    rules: [
      // TODO: Disable require.ensure as it's not a standard language feature.
      // We are waiting for https://github.com/facebookincubator/create-react-app/issues/2176.
      // { parser: { requireEnsure: false } },

      // First, run the linter.
      // It's important to do this before Babel processes the JS.
      {
        test: /\.(js|jsx)$/,
        enforce: 'pre',
        use: [
          {
            options: {
              formatter: eslintFormatter,

            },
            loader: require.resolve('eslint-loader'),
          },
        ],
        include: paths.appSrc,
      },
      // ** ADDING/UPDATING LOADERS **
      // The "file" loader handles all assets unless explicitly excluded.
      // The `exclude` list *must* be updated with every change to loader extensions.
      // When adding a new loader, you must add its `test`
      // as a new entry in the `exclude` list for "file" loader.

      // "file" loader makes sure those assets get served by WebpackDevServer.
      // When you `import` an asset, you get its (virtual) filename.
      // In production, they would get copied to the `build` folder.
      {
        exclude: [
          /\.html$/,
          /\.(js|jsx)$/,
          /\.css$/,
          /\.json$/,
          /\.bmp$/,
          /\.gif$/,
          /\.jpe?g$/,
          /\.png$/,
        ],
        loader: require.resolve('file-loader'),
        options: {
          name: 'static/media/[name].[hash:8].[ext]',
        },
      },
      // "url" loader works like "file" loader except that it embeds assets
      // smaller than specified limit in bytes as data URLs to avoid requests.
      // A missing `test` is equivalent to a match.
      {
        test: [/\.bmp$/, /\.gif$/, /\.jpe?g$/, /\.png$/],
        loader: require.resolve('url-loader'),
        options: {
          limit: 10000,
          name: 'static/media/[name].[hash:8].[ext]',
        },
      },
      // Process JS with Babel.
      {
        test: /\.(js|jsx)$/,
        include: paths.appSrc,
        loader: require.resolve('babel-loader'),
        options: {

          // This is a feature of `babel-loader` for webpack (not Babel itself).
          // It enables caching results in ./node_modules/.cache/babel-loader/
          // directory for faster rebuilds.
          cacheDirectory: true,
        },
      },
      // ** STOP ** Are you adding a new loader?
      // Remember to add the new extension(s) to the "file" loader exclusion list.
    ],
  },
  plugins: [
    // Makes some environment variables available to the JS code, for example:
    // if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
    new webpack.DefinePlugin(env.stringified),
    // Moment.js is an extremely popular library that bundles large locale files
    // by default due to how Webpack interprets its code. This is a practical
    // solution that requires the user to opt into importing specific locales.
    // https://github.com/jmblog/how-to-optimize-momentjs-with-webpack
    // You can remove this if you don't use Moment.js:
    new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
  ],
};

webpack.config.client.dev.js

'use strict';

const autoprefixer = require('autoprefixer');
const path = require('path');
const webpack = require('webpack');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
const paths = require('./paths');
const getClientEnvironment = require('./env');
const WebpackNotifierPlugin = require('webpack-notifier');

const base = require('./webpack.config.base');

const config = Object.assign({}, base)

config.entry = [
    // Include an alternative client for WebpackDevServer. A client's job is to
    // connect to WebpackDevServer by a socket and get notified about changes.
    // When you save a file, the client will either apply hot updates (in case
    // of CSS changes), or refresh the page (in case of JS changes). When you
    // make a syntax error, this client will display a syntax error overlay.
    // Note: instead of the default WebpackDevServer client, we use a custom one
    // to bring better experience for Create React App users. You can replace
    // the line below with these two lines if you prefer the stock client:
    // require.resolve('webpack-dev-server/client') + '?/',
    // require.resolve('webpack/hot/dev-server'),
    require.resolve('react-dev-utils/webpackHotDevClient'),
    // We ship a few polyfills by default:
    require.resolve('./polyfills'),
    // Errors should be considered fatal in development
    require.resolve('react-error-overlay'),
    // Finally, this is your app's code:
    paths.appIndexJs,
    // We include the app code last so that if there is a runtime error during
    // initialization, it doesn't blow up the WebpackDevServer client, and
    // changing JS code would still trigger a refresh.
]

config.output = {
    // Next line is not used in dev but WebpackDevServer crashes without it:
    path: paths.appBuild,
    // Add /* filename */ comments to generated require()s in the output.
    pathinfo: true,
    // This does not produce a real file. It's just the virtual path that is
    // served by WebpackDevServer in development. This is the JS bundle
    // containing code from all our entry points, and the Webpack runtime.
    filename: 'static/js/bundle.js',
    // There are also additional JS chunk files if you use code splitting.
    chunkFilename: 'static/js/[name].chunk.js',
    // This is the URL that app is served from. We use "/" in development.
    publicPath: '/',
    hotUpdateChunkFilename: 'static/[id].[hash].hot-update.js',
    hotUpdateMainFilename: 'static/[hash].hot-update.json',
    // Point sourcemap entries to original disk location
    devtoolModuleFilenameTemplate: info =>
        path.resolve(info.absoluteResourcePath),
}

config.module.rules = config.module.rules.concat([
    // "postcss" loader applies autoprefixer to our CSS.
    // "css" loader resolves paths in CSS and adds assets as dependencies.
    // "style" loader turns CSS into JS modules that inject <style> tags.
    // In production, we use a plugin to extract that CSS to a file, but
    // in development "style" loader enables hot editing of CSS.
    {
        test: /\.css$/,
        include: paths.appSrc,
        use: [
            {
                loader: "style-loader" // creates style nodes from JS strings
            }, {
                loader: "css-loader", // translates CSS into CommonJS
                options: {
                    importLoaders: 1
                }
            }
        ]
    },
])

config.plugins = config.plugins.concat([
    // This is necessary to emit hot updates (currently CSS only):
    new webpack.HotModuleReplacementPlugin(),
    // Watcher doesn't work well if you mistype casing in a path so we use
    // a plugin that prints an error when you attempt to do this.
    // See https://github.com/facebookincubator/create-react-app/issues/240
    new CaseSensitivePathsPlugin(),
    // If you require a missing module and then `npm install` it, you still have
    // to restart the development server for Webpack to discover it. This plugin
    // makes the discovery automatic so you don't have to restart.
    // See https://github.com/facebookincubator/create-react-app/issues/186
    new WatchMissingNodeModulesPlugin(paths.appNodeModules),

    new WebpackNotifierPlugin({
        title: 'Webpack',
        excludeWarnings: true,
        alwaysNotify: true,
        contentImage: path.join(__dirname, '../ahamo-logo.png')
    }),

    new webpack.LoaderOptionsPlugin({
        debug: true
    }),
])

// Turn off performance hints during development because we don't do any
// splitting or minification in interest of speed. These warnings become
// cumbersome.
config.performance = {
    hints: false,
}

// Some libraries import Node modules but don't use them in the browser.
// Tell Webpack to provide empty mocks for them so importing them works.
config.node = {
    fs: 'empty',
    net: 'empty',
    tls: 'empty',
},

module.exports = config

“严格使用”；
const autoprefixer=require（'autoprefixer'）；
const path=require（'path'）；
const webpack=require（'webpack'）；
const CaseSensitivePathsPlugin=require（'case-sensitive-path-webpack-plugin'）；
const watchmissingdemodulesplugin=require（'react-dev-utils/watchmissingdemodulesplugin'）；
常量路径=需要（'./路径'）；
const getClientEnvironment=require（'./env'）；
const WebpackNotifierPlugin=require（'webpack-notifier'）；
const base=require（'./webpack.config.base'）；
const config=Object.assign（{}，base）
config.entry=[
//包括WebpackDevServer的备用客户端。客户端的作业是
//通过套接字连接到WebpackDevServer，并获得有关更改的通知。
//保存文件时，客户端将应用热更新（如果
//或刷新页面（如果是JS更改）
//如果出现语法错误，此客户端将显示语法错误覆盖。
//注意：我们使用的不是默认的WebpackDevServer客户端，而是自定义客户端
//为Create React应用程序用户带来更好的体验。您可以替换
//如果您更喜欢股票客户，请使用以下两行：
//require.resolve（'webpack-dev-server/client'）+“？/”，
//require.resolve（'webpack/hot/dev server'），
require.resolve（'react-dev-utils/webpackHotDevClient'），
//默认情况下，我们会提供一些多边形填充：
require.resolve（“./polyfills”），
//在开发过程中，错误应该被认为是致命的
require.resolve（'react-error-overlay'），
//最后，这是您的应用程序代码：
path.appIndexJs，
//我们最后包含应用程序代码，以便在
//初始化时，它不会炸毁WebpackDevServer客户端，并且
//更改JS代码仍然会触发刷新。
]
config.output={
//下一行未在dev中使用，但WebpackDevServer在没有它的情况下崩溃：
路径：path.appBuild，
//向输出中生成的require（）添加/*filename*/注释。
是的，
//这不会生成真正的文件，它只是虚拟路径
//由开发中的WebpackDevServer提供服务。这是JS包
//包含来自所有入口点的代码，以及Webpack运行时。
文件名：“static/js/bundle.js”，
//如果使用代码拆分，还存在其他JS块文件。
chunkFilename:'static/js/[name].chunk.js'，
//这是应用服务的URL。我们在开发中使用“/”。
公共路径：“/”，
hotUpdateChunkFilename:'static/[id].[hash].hot update.js'，
hotUpdateMainFilename:'static/[hash].hot update.json'，
//将sourcemap条目指向原始磁盘位置
devtoolModuleFilenameTemplate:info=>
路径解析（信息绝对资源路径），
}
config.module.rules=config.module.rules.concat([
//“postcss”加载程序将AutoRefixer应用于我们的CSS。
//“css”加载器解析css中的路径，并将资产添加为依赖项。
//“样式”加载器将CSS转换为注入标记的JS模块。
//在生产中，我们使用插件将CSS提取到文件中，但是
//在开发中，“样式”加载器支持CSS的热编辑。
{
测试：/\.css$/,，
包括：path.appSrc，
使用：[
{
加载器：“样式加载器”//从JS字符串创建样式节点
}, {
加载器：“css加载器”//将css转换为CommonJS
选项：{
进口装载机：1
}
}
]
},
])
config.plugins=config.plugins.concat([
//这是发出热更新（当前仅限于CSS）所必需的：
新建webpack.HotModuleReplacementPlugin（），
//如果您在路径中键入了错误的大小写，那么Watcher将无法正常工作，因此我们使用
//当您尝试执行此操作时打印错误的插件。
//看https://github.com/facebookincubator/create-react-app/issues/240
新的区分大小写的PathSplugin（），
//如果您需要一个丢失的模块，然后“npm安装”它，您仍然有
//重新启动Web包的开发服务器以发现它。此插件
//使发现自动进行，因此您无需重新启动。
//看https://github.com/facebookincubator/create-react-app/issues/186
新WatchMissingNodeModulesPlugin（path.appNodeModules），
新的WebpackNotifierPlugin({
标题：“网页包”，
排除警告：正确，
总是这么说：是的，
contentImage:path.join（_dirname，'../ahamo logo.png'））
}),
新的webpack.LoaderOptionsPlugin({
调试：正确
}),
])
//在开发过程中关闭性能提示，因为我们不做任何操作
//为了速度而分割或缩小。这些警告成为
//笨重的。
config.performance={
提示：错，
}
//某些库导入节点模块，但不在浏览器中使用它们。
//告诉Webpack为它们提供空模拟，以便导入它们。
config.node={
财政司司长：‘空置’，
net:'空'，
tls:'空'，
},
module.exports=config

webpack.config.service

'use strict';

const path = require('path');
const webpack = require('webpack');
const CaseSensitivePathsPlugin = require('case-sensitive-paths-webpack-plugin');
const WatchMissingNodeModulesPlugin = require('react-dev-utils/WatchMissingNodeModulesPlugin');
const paths = require('./paths');
const nodeExternals = require('webpack-node-externals');
const getClientEnvironment = require('./env');
const base = require('./webpack.config.base');
const publicUrl = '';
// Get environment variables to inject into our app.
const env = getClientEnvironment(publicUrl);

const config = Object.assign({}, base)

config.target = 'node'
config.entry = paths.serverIndexJs
config.externals = [nodeExternals()] // / in order to ignore all modules in node_modules folder
config.output = {
  path: paths.serverBuild,
  filename: 'bundle.js',
  publicPath: '/'
}

config.module.rules = config.module.rules.concat([
  // "postcss" loader applies autoprefixer to our CSS.
  // "css" loader resolves paths in CSS and adds assets as dependencies.
  // "style" loader turns CSS into JS modules that inject <style> tags.
  // In production, we use a plugin to extract that CSS to a file, but
  // in development "style" loader enables hot editing of CSS.
  {
    test: /\.css$/,
    include: paths.appSrc,
    use: [
      {
        loader: "style-loader" // creates style nodes from JS strings
      }, {
        loader: "css-loader", // translates CSS into CommonJS
        options: {
          importLoaders: 1
        }
      }
    ]
  },
])

config.plugins = config.plugins.concat([
  // Makes some environment variables available to the JS code, for example:
  // if (process.env.NODE_ENV === 'development') { ... }. See `./env.js`.
  new webpack.DefinePlugin(env.stringified),
])

config.node = {
  console: false,
  global: false,
  process: false,
  Buffer: false,
  __filename: false,
  __dirname: false,
  setImmediate: false,
}

module.exports = config

{
  "name": "universal-create-react-app",
  "version": "0.1.0",
  "scripts": {
    "serve": "NODE_ENV=production node ./build/server/bundle.js",
    "start": "node scripts/start.js",
    "nodemon": "nodemon --watch build/server build/server/bundle.js build/server/bundle.js",
    "build-client": "node scripts/build-client.js",
    "build-server": "node scripts/build-server.js",
    "build": "npm run build-client && npm run build-server",
    "test": "node scripts/test.js --env=jsdom"
  },
  "author": "Campbell Stephenson: Ahamo Digital - Ahamo Pty Ltd",
  "license": "SEE LICENSE IN copyright.txt",
  "dependencies": {
    "@fortawesome/fontawesome": "^1.1.3",
    "@fortawesome/fontawesome-free-brands": "^5.0.6",
    "@fortawesome/fontawesome-pro-light": "^5.0.6",
    "@fortawesome/fontawesome-pro-regular": "^5.0.6",
    "@fortawesome/fontawesome-pro-solid": "^5.0.6",
    "@fortawesome/react-fontawesome": "0.0.17",
    "axios": "^0.16.2",
    "express": "^4.15.3",
    "express-http-proxy": "1.0.6",
    "i": "^0.3.6",
    "npm": "^5.6.0",
    "postcss-cssnext": "^3.1.0",
    "prop-types": "^15.5.10",
    "react": "^16.2.0",
    "react-context-component": "^0.0.3",
    "react-dom": "^16.2.0",
    "react-redux": "^5.0.6",
    "react-router-config": "^1.0.0-beta.4",
    "react-router-dom": "^4.1.1",
    "react-ssr-critical-styles": "^0.1.2",
    "reactstrap": "^5.0.0-beta",
    "redux": "3.7.2",
    "redux-thunk": "2.2.0",
    "serialize-javascript": "1.4.0"
  },
  "devDependencies": {
    "autoprefixer": "7.1.0",
    "babel-cli": "^6.24.1",
    "babel-core": "6.24.1",
    "babel-eslint": "7.2.3",
    "babel-jest": "20.0.3",
    "babel-loader": "^7.1.2",
    "babel-preset-react-app": "^3.0.0",
    "babel-runtime": "6.23.0",
    "case-sensitive-paths-webpack-plugin": "1.1.4",
    "chalk": "1.1.3",
    "concurrently": "^3.4.0",
    "cross-env": "^5.0.0",
    "css-loader": "^0.28.9",
    "dotenv": "4.0.0",
    "eslint": "3.19.0",
    "eslint-config-react-app": "^1.0.4",
    "eslint-loader": "1.7.1",
    "eslint-plugin-flowtype": "2.33.0",
    "eslint-plugin-import": "2.2.0",
    "eslint-plugin-jsx-a11y": "5.0.3",
    "eslint-plugin-react": "7.0.1",
    "extract-text-webpack-plugin": "^3.0.2",
    "file-loader": "0.11.1",
    "fs-extra": "3.0.1",
    "html-webpack-plugin": "^2.30.1",
    "http-proxy-middleware": "^0.17.4",
    "isomorphic-fetch": "^2.2.1",
    "isomorphic-style-loader": "^4.0.0",
    "jest": "20.0.3",
    "node-style-loader": "0.0.1-alpha",
    "nodemon": "^1.11.0",
    "object-assign": "4.1.1",
    "postcss-flexbugs-fixes": "3.0.0",
    "postcss-loader": "2.0.5",
    "promise": "7.1.1",
    "react-dev-utils": "^3.0.0",
    "react-error-overlay": "^1.0.7",
    "style-loader": "^0.20.1",
    "sw-precache-webpack-plugin": "^0.11.4",
    "url-loader": "0.5.8",
    "webpack": "^3.5.6",
    "webpack-dev-server": "^2.8.2",
    "webpack-manifest-plugin": "1.1.0",
    "webpack-node-externals": "^1.6.0",
    "webpack-notifier": "^1.5.1",
    "whatwg-fetch": "2.0.3"
  },
  "jest": {
    "collectCoverageFrom": [
      "src/**/*.{js,jsx}"
    ],
    "setupFiles": [
      "<rootDir>/config/polyfills.js"
    ],
    "testMatch": [
      "<rootDir>/src/**/__tests__/**/*.js?(x)",
      "<rootDir>/src/**/?(*.)(spec|test).js?(x)"
    ],
    "testEnvironment": "node",
    "testURL": "http://localhost",
    "transform": {
      "^.+\\.(js|jsx)$": "<rootDir>/node_modules/babel-jest",
      "^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
      "^(?!.*\\.(js|jsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
    },
    "transformIgnorePatterns": [
      "[/\\\\]node_modules[/\\\\].+\\.(js|jsx)$"
    ],
    "moduleNameMapper": {
      "^react-native$": "react-native-web"
    }
  },
  "babel": {
    "presets": [
      "react-app"
    ]
  },
  "eslintConfig": {
    "extends": "react-app"
  }
}

Module build failed: Unknown word (2:1)

var content = require("!!../../../../../../node_modules/css-loader/index.js?{\"importLoaders\":1}!./styles.css");

if(typeof content === 'string') content = [[module.id, content, '']];