React配置问题的WebPack

Question

我的配置有问题。当我安装依赖项" React-Dom"

时发生了错误

根据我的搜索，一切都必须很好，但肯定不是。

错误如下：

Hash: f2d1526b060b4c79da6f
Version: webpack 3.11.0
Time: 342ms
     Asset       Size  Chunks             Chunk Names
    app.js     2.8 kB       0  [emitted]  main
index.html  353 bytes          [emitted]
   [0] multi ./src/index.jsx 28 bytes {0} [built]
   [1] ./src/index.jsx 206 bytes {0} [built] [failed] [1 error]
ERROR in ./src/index.jsx
Module parse failed: Unexpected token (7:6)
You may need an appropriate loader to handle this file type.
|   render(){
|     return(
|       <h1>Ar</h1>
|     )
|   }
 @ multi ./src/index.jsx
Child html-webpack-plugin for "index.html":
     1 asset
       [0] ./node_modules/html-webpack-                
plugin/lib/loader.js!./src/assets/index.html 690 bytes {0} [built]
       [2] (webpack)/buildin/global.js 509 bytes {0} [built]
       [3] (webpack)/buildin/module.js 517 bytes {0} [built]

非常感谢！

Answer 1

安装 npm i -D babel-core;

和

尝试：

module: {
        rules: [
            {test: /.jsx?$/, exclude: /node_modules/, use: ["babel-loader"]},
            {test: /.css$/, use: ["style-loader", `css-loader?${cssModules}`}
        ]
    }