Hey there, I totally get the frustration of switching over from mobile/desktop dev to web tech and hitting weird module errors—especially with Monaco's finicky AMD loading setup. Let's get this sorted out step by step:

问题根源 #

Monaco Editor uses a non-standard AMD module system that doesn't play nice with Electron Forge's default Webpack configuration out of the box. Unlike Ace Editor (which uses standard ES/CommonJS modules), Monaco needs extra Webpack handling to resolve its modules and static assets (like language packs and styles).

具体修复步骤 #

1. 安装必要依赖 #

First, make sure you have both react-monaco-editor and the core monaco-editor installed, plus the Webpack plugin that handles Monaco's special needs:

yarn add react-monaco-editor monaco-editor
yarn add --dev monaco-editor-webpack-plugin

2. 修改Webpack配置 #

Electron Forge uses separate Webpack configs for the main process and renderer process. You'll need to update the renderer config to include the Monaco plugin:

• If you already have a webpack.renderer.config.js file in your project root, modify it like this:

const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');

module.exports = {
  // 保留你现有的配置项（比如entry、module规则等）
  plugins: [
    // 添加这个插件来处理Monaco的模块加载
    new MonacoWebpackPlugin({
      // 只指定你需要的语言，减少打包体积
      languages: ['javascript']
    })
  ]
};

• If you don't have a separate renderer config, update your forge.config.js to point to a custom renderer config:

module.exports = {
  packagerConfig: {},
  rebuildConfig: {},
  makers: [],
  plugins: [
    {
      name: '@electron-forge/plugin-webpack',
      config: {
        mainConfig: './webpack.main.config.js',
        renderer: {
          config: './webpack.renderer.config.js', // 指向你的新渲染进程配置文件
          entryPoints: [
            {
              html: './src/index.html',
              js: './src/renderer.js',
              name: 'main_window'
            }
          ]
        }
      }
    }
  ]
};

3. 调整你的Editor组件 #

Update your src/app.jsx to include basic dimensions (so you can actually see the editor) and a default value:

import React from 'react';
import MonacoEditor from 'react-monaco-editor';

export default class App extends React.Component {
  render() {
    const defaultCode = '// Write your JavaScript code here!';
    return (
      <MonacoEditor
        width="800px"
        height="600px"
        language="javascript"
        value={defaultCode}
      />
    );
  }
}

4. 重启项目 #

Finally, stop your running dev server and restart it:

npm start

为什么Ace Editor能正常工作但Monaco不行？ #

Ace使用标准的ES/CommonJS模块语法，完美适配Electron Forge默认的Webpack配置。而Monaco最初是为VS Code环境构建的，依赖AMD加载机制，必须通过Webpack插件转换才能让Electron识别。

内容的提问来源于stack exchange，提问作者Zac