目标容器不是DOM元素React.js [英] Target container is not a DOM element React.js
问题描述
我查看了所有发生此问题的其他帖子，但我仍然对为什么遇到此错误感到困惑。我确信我在我的
中使用了id。刚刚开始使用React，所以我确信它非常愚蠢。
感谢您的帮助。
以下代码。
index.html
< html>
< head>
< / head>
< body>
< div id =testing>< / div>
< script src =index.js>< / script>
< / body>
< / html>
index.js
import从'react'反应;
从'react-dom'导入ReactDOM;
import'./index.css';
从'./App'导入应用程序;
从'./registerServiceWorker'导入registerServiceWorker;
ReactDOM.render（< App /> ;, document.getElementById（'testing'））;
registerServiceWorker（）;
完整错误信息：
不变
../ app / node_modules / fbjs / lib / invariant.js：42 renderSubtreeIntoContainer
../app/node_modules /react-dom/cjs/react-dom.development.js:15144 render
../app/node_modules/react-dom/cjs/react-dom.development.js:15254
▲3堆栈帧被扩大了。
./src/index.js
../app/src/index.js:6
3 |导入'./index.css';
4 |从'./App'导入应用程序;
5 |
> 6 | ReactDOM.render（< App />，document.getElementById（'testing'））;
7 |
8 |
9 |
查看已编译的
▼6个堆栈帧已扩展。
__webpack_require__
../app/webpack/bootstrap 4755e61baeec1360d412：678
fn
../app/webpack/bootstrap 4755e61baeec1360d412：88
0
http ：// localhost：3000 / static / js / bundle.js：35264：18
__webpack_require__
../app/webpack/bootstrap 4755e61baeec1360d412：678
./node_modules/ansi-regex/ index.js.module.exports
../app/webpack/bootstrap 4755e61baeec1360d412：724
（匿名函数）
http：// localhost：3000 / static / js / bundle.js： 728：10
确保仔细检查索引。您在浏览器中看到的html。假设你使用了create-react-app和webpack，它可能会从内存或者公共文件夹为你提供一个不同的文件。
错误来自讨论在评论和聊天中。
I have had a look at all the other posts that have had this issue, but I am still confused as to why I am running into this error. I made sure I used id in my
Just started playing with React, so I am sure its something quite silly.
Thanks for the help in advance.
Code is below.
index.html
<html>
<head>
</head>
<body>
<div id="testing"></div>
<script src="index.js"></script>
</body>
</html>
index.js
import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import registerServiceWorker from './registerServiceWorker';
ReactDOM.render(<App />, document.getElementById('testing'));
registerServiceWorker();
Full Error message:
invariant
../app/node_modules/fbjs/lib/invariant.js:42 renderSubtreeIntoContainer
../app/node_modules/react-dom/cjs/react-dom.development.js:15144 render
../app/node_modules/react-dom/cjs/react-dom.development.js:15254
▲ 3 stack frames were expanded.
./src/index.js
../app/src/index.js:6
3 | import './index.css';
4 | import App from './App';
5 |
> 6 | ReactDOM.render(<App />, document.getElementById('testing'));
7 |
8 |
9 |
View compiled
▼ 6 stack frames were expanded.
__webpack_require__
../app/webpack/bootstrap 4755e61baeec1360d412:678
fn
../app/webpack/bootstrap 4755e61baeec1360d412:88
0
http://localhost:3000/static/js/bundle.js:35264:18
__webpack_require__
../app/webpack/bootstrap 4755e61baeec1360d412:678
./node_modules/ansi-regex/index.js.module.exports
../app/webpack/bootstrap 4755e61baeec1360d412:724
(anonymous function)
http://localhost:3000/static/js/bundle.js:728:10
Make sure to double check the index.html you are seeing in your browser. Assuming you use create-react-app an thereby webpack it might serve you a different file either from memory or from the public folder.
Mistake was found from discussion in comments and chat.
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