Javascript REACT.JS:多主错误
我是React.JS(在Windows 10上)的新手,我正在完成第一个图托,在里面,我习惯于为我的React.app设置一个基本的工作区。但在我的职责范围内,在全球和本地设置了webpack和babel软件包,并制作了第一个hello word应用程序后,第一次构建没有成功。 我的预安装:Javascript REACT.JS:多主错误,javascript,reactjs,webpack,react-jsx,package.json,Javascript,Reactjs,Webpack,React Jsx,Package.json,我是React.JS(在Windows 10上)的新手,我正在完成第一个图托,在里面,我习惯于为我的React.app设置一个基本的工作区。但在我的职责范围内,在全球和本地设置了webpack和babel软件包,并制作了第一个hello word应用程序后,第一次构建没有成功。 我的预安装: npm install -g babel npm install -g babel-cli npm install webpack --save npm install webpack-dev-server
npm install -g babel
npm install -g babel-cli
npm install webpack --save
npm install webpack-dev-server --save
npm install react --save
npm install react-dom --save
npm install babel-core
npm install babel-loader
npm install babel-preset-react
npm install babel-preset-es2015
<!DOCTYPE html>
<html lang = "en">
<head>
<meta charset = "UTF-8">
<title>React App</title>
</head>
<body>
<div id = "app"></div>
<script src = "index.js"></script>
</body>
</html>
import React from 'react';
class App extends React.Component {
render() {
return (
<div>
Hello World!!!
</div>
);
}
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.jsx';
ReactDOM.render(<App />, document.getElementById('app'));
因此,我的包.json包含:
{
"name": "reactapp",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"start": "webpack-dev-server --hot"
},
"author": "",
"license": "ISC",
"dependencies": {
"babel-cli": "^6.0.0",
"babel-core": "^6.17.0",
"babel-loader": "^6.2.5",
"babel-preset-es2015": "^6.16.0",
"babel-preset-react": "^6.16.0",
"react": "^15.3.2",
"react-dom": "^15.3.2",
"webpack": "^1.13.2",
"webpack-dev-server": "^1.16.2"
}
}
我的存储库包含4个其他文件:
index.html、App.jsx、main.js、webpack.config.js
index.html:
npm install -g babel
npm install -g babel-cli
npm install webpack --save
npm install webpack-dev-server --save
npm install react --save
npm install react-dom --save
npm install babel-core
npm install babel-loader
npm install babel-preset-react
npm install babel-preset-es2015
<!DOCTYPE html>
<html lang = "en">
<head>
<meta charset = "UTF-8">
<title>React App</title>
</head>
<body>
<div id = "app"></div>
<script src = "index.js"></script>
</body>
</html>
import React from 'react';
class App extends React.Component {
render() {
return (
<div>
Hello World!!!
</div>
);
}
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.jsx';
ReactDOM.render(<App />, document.getElementById('app'));
因此,每当我启动“npm启动”时,我都会得到一个失败的构建(捕获-附加-)
类似地,在localhost:8123上,我得到了如下相同的错误:
有没有解决这个问题的建议???我只是简单地通过删除节点模块文件夹来解决,然后重新保存npm install
条目:“./main.js”
是的,但是它仍然不起作用,可能是因为构建的目标与源代码位于同一路径,所以之后它会尝试重新加载main.js吗?为什么不把你的条目和源文件放在一个单独的目录中,这样webpack就不会在以后被弄糊涂呢?是的,只要解决这个问题,然后重新安装节点模块,就解决了这个问题