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reactjs - 没有合适的加载器来处理 js WebPack babel-loader

问题描述

我收到关于捆绑 JSON 数据的意外错误。我尝试使用 json-loader 来捆绑 json，但在那里遇到了同样的错误。

ERROR in ./src/index.js 6:7
Module parse failed: Unexpected token (6:7)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
| import data from './data/recipes.json';
| 
> render(<Menu recipes={data} />, document.getElementById('root'));

webpack 5.53.0 compiled with 1 error in 82 ms

./src/index.js

import React from 'react';
import { render} from 'react-dom';
import Menu from './components/Menu';
import data from './data/recipes.json';

render(<Menu recipes={data} />, document.getElementById('root'));

webpack.config.js

var path = require('path');

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.join(__dirname, 'dist', 'assets'),
    filename: 'bundle.js'
  },
  module: {
    rules: [{ test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader' }]
  }
};

.babelrc

{
  "presets": [
    "@babel/preset-env", 
    [
      "@babel/preset-react",
      {
        "runtime": "automatic"
      }
    ]
  ]
}

包.json

{
  "name": "recipes-app",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "build": "webpack --mode production"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "react": "^17.0.2",
    "react-dom": "^17.0.2",
    "serve": "^12.0.1"
  },
  "devDependencies": {
    "@babel/core": "^7.15.5",
    "@babel/preset-env": "^7.15.6",
    "@babel/preset-react": "^7.14.5",
    "babel-loader": "^8.2.2",
    "webpack": "^5.53.0",
    "webpack-cli": "^4.8.0"
  }
}

在“webpack.config.js”文件中，我尝试将“加载器”更改为“使用”，同样的事情......

从 'react-dom' 导入 ReactDOM 和 ReactDOM.render() 也是一样的...

标签： reactjswebpackbabel-loader

解决方案

webpack.config.js 位于 dir 结构的错误位置。

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