錯誤如下：
HenHouse admin$ ionic cordova build ios --prod
> ionic integrations enable cordova
✖ Downloading integration cordova - failed!
[ERROR] Network connectivity error occurred, are you offline?
If you are behind a firewall and need to configure proxy settings, see: https://ionicframework.com/docs/cli/configuring.html#using-a-proxy Error: getaddrinfo ENOTFOUND d2ql0qc7j8u4b2.cloudfront.net d2ql0qc7j8u4b2.cloudfront.net:443 at errnoException (dns.js:50:10) at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:92:26) 方法：
npm config set proxy=https://registry.npm.taobao.org npm config set https_proxy=https://registry.npm.taobao.org 參考文檔
https://ionicframework.com/docs/cli/configuring.html
https://blog.csdn.net/u011127019/article/details/78855004
作者：走停2015_iOS開發
鏈接：https://www.jianshu.com/p/177994f85cf3
來源：簡書
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