electron-builder 打包时无法下载github上文件处理

方法一
设置npmrc

electron-builder-binaries_mirror=https://npmmirror.com/mirrors/electron-builder-binaries/

方法二：

1、 从网站上下载相关文件
https://github.com/electron-userland/electron-builder-binaries/releases
2、 存放到系统的缓存库中
不同系统缓存资源目录如下

macOS: ~/Library/Caches/electron-builder
Linux: ~/.cache/electron-builder
windows: %LOCALAPPDATA%\electron-builder\cache

3、 详细结构

├── AppImage
│   └── AppImage-17-06-17-mac
├── AppImage-packages
│   └── 10.03.17
├── Squirrel.Windows
│   └── Squirrel.Windows-1.6.0.0
├── fpm
│   └── fpm-1.8.1-20150715-2.2.2
├── linux-tools
│   └── linux-tools-mac-10.12
├── nsis
│   └── nsis-3.0.1.13
│  └── nsis-resources-3.1.0
├── winCodeSign
│   └── winCodeSign-1.9.0
└── wine
    └── wine-2.0.1-mac-10.12

https://github.com/electron-userland/electron-builder/issues/1859