Webpack要求使用Create-React-App时抛出目标容器不是DOM元素吗？

Question

I'm trying to recreate the boilerplate and setup a fresh dev ReactJS environment which following mimic this repo , by using Create-React-App . 我正在尝试通过使用Create-React-App重新创建样板并设置一个新的dev ReactJS开发环境，该环境在模仿此仓库之后。

I've made sure that I can see the default landing page on http://localhost:3000/ before proceed making the changes. 在进行更改之前，我已经确保可以在http://localhost:3000/上看到默认的登录页面。

Below are the steps I've gone thru: 以下是我经过的步骤：

Delete all files inside src folder 删除src文件夹中的所有文件
npm install react-redux redux
Add index.js at src folder 在src文件夹中添加index.js
Add components , reducers directory at src folder 在src文件夹中添加components ， reducers目录
Add app.js at src/components/ folder 在src/components/文件夹中添加app.js
Add index.js at src/reducers/ folder 在src/reducers/文件夹中添加index.js

Below are the content of the files 以下是文件的内容

src/index.js src / index.js

import React from 'react';
import ReactDOM from 'react-dom';
import { Provider } from 'react-redux';
import { createStore, applyMiddleware } from 'redux';

import App from './components/app';
import reducers from './reducers';

const createStoreWithMiddleware = applyMiddleware()(createStore);

ReactDOM.render(
  <Provider store={createStoreWithMiddleware(reducers)}>
    <App />
  </Provider>
  , document.querySelector('.container'));

src/reducers/index.js src / reducers / index.js

import { combineReducers } from 'redux';

const rootReducer = combineReducers({
  state: (state = {}) => state
});

export default rootReducer;

src/components/app.js src / components / app.js

import React, { Component } from 'react';

export default class App extends Component {
  render() {
    return (
      <div>React simple starter</div>
    );
  }
}

And I'm hitting error below 我在下面遇到错误

UPDATES 更新

Based on the feedbacks, i'm including my index.html as below 根据反馈，我将index.html包含如下

index.html index.html

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="/style/style.css">
    <link rel="stylesheet" href="https://cdn.rawgit.com/twbs/bootstrap/48938155eb24b4ccdde09426066869504c6dab3c/dist/css/bootstrap.min.css">
    <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyAq06l5RUVfib62IYRQacLc-KAy0XIWAVs"></script>
  </head>
  <body>
    <div class="container"></div>
  </body>
  <script src="/bundle.js"></script>
</html>

Answer 1

If you use react-create-app, it generates an HTML-file, where no document.querySelector('.container') . 如果使用react-create-app，它将生成一个HTML文件，其中没有document.querySelector('.container') 。 Instead of it, this html file has <div id="root"></div> , so you can try to change from document.querySelector('.container') to document.querySelector('#root') . 取而代之的是，该html文件具有<div id="root"></div> ，因此您可以尝试从document.querySelector('.container')更改为document.querySelector('#root') 。 If it doesn't help, show please your HTML-file. 如果没有帮助，请显示您的HTML文件。

Webpack要求使用Create-React-App时抛出目标容器不是DOM元素吗？

问题描述

1 个解决方案

解决方案1
2 2018-07-25 11:43:09

Webpack要求使用Create-React-App时抛出目标容器不是DOM元素吗？

问题描述

1 个解决方案

解决方案1 2 2018-07-25 11:43:09

解决方案1
2 2018-07-25 11:43:09