在云效中yarn install的时候报错，如何解决？

使用中国内地registry和mirror

使用中国内地registry仓库避免由于海外网络访问导致的依赖下载慢的问题

yarn config set registry https://npmmirror.com
对于构建中由于Building fresh packages导致构建慢的情况需要指定特定外部依赖的中国内地镜像源：

yarn config set sass_binary_site "https://npmmirror.com/mirrors/node-sass/"
除了通过yarn config set指定依赖下载路径以外，还可以通过.yarnrc进行配置。在项目根路径中创建.yarnrc并配置以下内容：

registry "https://registry.npmmirror.com"
sass_binary_site "https://npmmirror.com/mirrors/node-sass/"
phantomjs_cdnurl "https://cdn.npmmirror.com/binaries/phantomjs"
electron_mirror "https://cdn.npmmirror.com/binaries/electron/"
sqlite3_binary_host_mirror "https://foxgis.oss-cn-shanghai.aliyuncs.com/"
chromedriver_cdnurl "https://cdn.npmmirror.com/binaries/chromedriver"

参考文档https://help.aliyun.com/document_detail/202442.html?spm=a2c4g.153702.0.i2