现象
首次启动可能会等待很久，出现以下信息：
INFO Launching Electron...
Failed to fetch extension, trying 4 more times
Failed to fetch extension, trying 3 more times
Failed to fetch extension, trying 2 more times
解决方案：
找到background.js，将下面代码注释：
// import installExtension, { VUEJS3_DEVTOOLS } from 'electron-devtools-installer'
