Yarn building fresh packages... 解决方案
3d9dab9442d64353851695691b0c1c71
本质上还是源的问题：需要给electron设置一个特定的源。
项目下新增文件： .yarnrc
输入以下源：
registry "https://registry.npmmirror.com"
sass_binary_site "https://npmmirror.com/mirrors/node-sass/"
phantomjs_cdnurl "http://cnpmjs.org/downloads"
electron_mirror "https://npmmirror.com/mirrors/electron/"
sqlite3_binary_host_mirror "https://foxgis.oss-cn-shanghai.aliyuncs.com/"
profiler_binary_host_mirror "https://npmmirror.com/mirrors/node-inspector/"
chromedriver_cdnurl "https://npmmirror.com/mirrors/chromedriver/"