Webpack 2 React Hot Loader不工作

我正在尝试让Webpack 2 React Hot Loader工作但它似乎没有热重载 . 它正确呈现网页，但无论何时我对“App.js”文件进行任何更改，它都不会执行任何操作 .

webpack.config.json

var path = require('path');
var webpack = require('webpack');
module.exports = {
  entry: {
    'app': [
      'react-hot-loader/patch',
      path.join(__dirname, 'src/main.js')
    ]
  },
  output: {
    path: path.join(__dirname, 'build'),
    filename: 'bundle.js'
  },
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
      }
    ]
  }
};

.babelrc

{
  "presets": [
    ["env", {"modules": false}],
    "react"
  ],
  "plugins": [
    "transform-object-rest-spread"
  ]
}

package.json

{
  "main": "main.js",
  "scripts": {
    "dev": "webpack-dev-server --inline --hot"
  },
  "dependencies": {
    "express": "^4.15.2",
    "react": "^15.5.4",
    "react-dom": "^15.5.4"
  },
  "devDependencies": {
    "babel-core": "^6.24.1",
    "babel-loader": "^7.0.0",
    "babel-plugin-transform-object-rest-spread": "^6.23.0",
    "babel-polyfill": "^6.23.0",
    "babel-preset-env": "^1.4.0",
    "babel-preset-react": "^6.24.1",
    "react-hot-loader": "next",
    "webpack": "^2.4.1",
    "webpack-dev-server": "^2.4.4"
  }
}

我通过CLI使用--hot和--inline标志运行webpack-dev-server .

main.js

import React from 'react'
import ReactDOM from 'react-dom'
import { AppContainer } from 'react-hot-loader'

import App from './containers/App'

const render = Component => {
  ReactDOM.render(
    <AppContainer>
      <Component />
    </AppContainer>,
    document.getElementById('root')
  )
}

render(App)

if(module.hot) {
    module.hot.accept();
}

App.js

import React, { Component } from 'react'

export default class App extends Component {
  render() {
    return (
      <div>
        <div className="container">
          <h1>Testing</h1>
        </div>
      </div>
    )
  }
}

所以为了测试它，我将运行 yarn dev 并且服务器将启动 . 所有编译和webpack将输出 webpack: Compiled sucessfully . 但是，对App.js所做的任何更改都不会重新加载网页 . 网页上的控制台本身只输出：

[HMR] Waiting for update signal from WDS...
bundle.js:15580 [WDS] Hot Module Replacement enabled.

我尝试了这里列出的各种方法（https://github.com/webpack/webpack-dev-server/issues/100），但似乎没有一种方法可行 .