Xcode 提交APP時遇到 “has one iOS Distribution certificate but its private key is not installed”

解決辦法：
登錄Apple開發證書后台，把發布版證書.cer文件下載到本地，雙擊安裝即可。若還沒有設置發布證書文件，則創建一個后下載。

Ref: https://blog.csdn.net/dingqk/article/details/79007072