試了很多次，也重開機，結果還是不行，可能需要在分析器上開些port 讓 xcode 可以和 iTunes Store 互連。
我是在 Xcodoe 裡把 ipa 匯出來，再用Application Loader 去上傳，就成功了。
我直接用下面的解法：
You have to agree to a new sign up in Application Loader. Select “Application Loader” under the “Xcode -> Open Developer Tool” menu (the first menu to the right of the Apple in the menu bar). Once you open Application Loader there will be a prompt to agree to new terms and then to login again into your iTunes account. After this any upload method will work.
下面這個解法對我來說有用！死馬當活馬醫，順便執行一下，下面這幾行指令，結果Xcode 就可以 Upload 了（灑花）：
This only started happening to me today (May 2017) and no answers in this thread solved my issue. The resolution for me was from here;
https://forums.developer.apple.com/thread/76803
cd ~
mv .itmstransporter/ .old_itmstransporter/
"/Applications/Xcode.app/Contents/Applications/Application Loader.app/Contents/itms/bin/iTMSTransporter"