Electron在npm/yarn安装问题：1Electron failed to install correctly 2path.txt无法找到 3 electron-v19.0.8-win32-x64无法下载等问题

Electron的npm包体积有点大，造成下载会遇到各种问题

yarn add electron --dev

1. yarn 安装后运行electron提示： Electron failed to install correctly

找到源码查看， \node_modules\electron\index.js

const pathFile = path.join(__dirname, 'path.txt');

function getElectronPath () {
 let executablePath;
 if (fs.existsSync(pathFile)) {
 executablePath = fs.readFileSync(pathFile, 'utf-8');
 }
 if (process.env.ELECTRON_OVERRIDE_DIST_PATH) {
 return path.join(process.env.ELECTRON_OVERRIDE_DIST_PATH, executablePath || 'electron');
 }
 if (executablePath) {
 return path.join(__dirname, 'dist', executablePath);
 } else {
 throw new Error('Electron failed to install correctly, please delete node_modules/electron and try installing again'); }
}

2. 看源码主要是由于 path.txt 没有找到造成的

找到 package.json 看到启动脚本会执行 install.js

"scripts": {
  "postinstall": "node install.js"
},

命令行当前目录，直接再次运行

node install.js

3. 此时会碰到 electron-v19.0.8-win32-x64.zip 下载中断的问题

>node install
Downloading electron-v19.0.8-win32-x64.zip: [====================----------------------------------------------------------------------------] 21% ETA: 5180.6 seconds

更换淘宝源 编辑 install.js，添加 mirrorOptions 项：

 downloadArtifact({
 version,
 artifactName: 'electron',
 force: process.env.force_no_cache === 'true',
 cacheRoot: process.env.electron_config_cache,
 checksums: process.env.electron_use_remote_checksums ? undefined : require('./checksums.json'),
 platform,
 arch,
 mirrorOptions: {
   mirror: 'https://npm.taobao.org/mirrors/electron/',
   customDir: version,
 },
}).then(extractFile).catch(err => {
 console.error(err.stack);
 process.exit(1);
});

再次执行顺利安装完成