es6 import syntax error about inject-loader HOT 9 CLOSED

// Karma configuration

let webpackConf = require('./webpack.config.js');

if (webpackConf.entry) {
  delete webpackConf.entry;
}

module.exports = function(config) {
  config.set({

    frameworks: ['jasmine'],

    port: 9876, // web server port

    colors: true,

    logLevel: config.LOG_INFO,

    reporters: ['progress'], // dots, progress

    autoWatch: true, // enable / disable watching files & then run tests

    browsers: ['Chrome'], //'PhantomJS', 'Firefox',

    singleRun: true, // if true, Karma captures browsers, runs the tests and exits

    concurrency: Infinity, // how many browser should be started simultaneous

    webpack: webpackConf, // Pass your webpack.config.js file's content

    webpackMiddleware: {
      noInfo: true,
      stats: 'errors-only'
    },

    /**
     * base path that will be used to resolve all patterns (eg. files, exclude)
     * This should be your JS Folder where all source javascript
     * files are located.
     */
    basePath: './resources/assets/js/',

    /**
     * list of files / patterns to load in the browser
     * The pattern just says load all files within a
     * tests directory including subdirectories
     **/
    files: [
      {
        pattern: '**/*.spec.js',
        watched: false
      },
    ],

    // list of files to exclude
    exclude: [],

    /**
     * pre-process matching files before serving them to the browser
     * Add your App entry point as well as your Tests files which should be
     * stored under the tests directory in your basePath also this expects
     * you to save your tests with a .spec.js file extension. This assumes we
     * are writing in ES6 and would run our file through babel before webpack.
     */
    preprocessors: {
      'app.js': ['webpack', 'babel'],
      '**/*.spec.js': ['babel', 'webpack']
    },
  })
};

module.exports = {};

module.exports = {
  module: {
    loaders: [
      {
        test: /\.js$/,
        exclude: /(node_modules|bower_components)/,
        loader: 'babel-loader',
        query: {
          presets: ['es2015']
        }
      }
    ]
  }
};