问题描述
升级了macOS Sierra (10.12) 和XCode8以后，使用Application Loader上传IPA到App Store时报了个奇怪的错误：
ITMS - 90167
调查
上Google搜了一下错误码，发现有很多相关讨论，比如StackOverFlow上：
http://stackoverflow.com/questions/37838487/error-itms-90167-no-app-bundles-found-in-the-package
After chatting with folks at WWDC in both the Xcode lab and the App Store lab, they were able to dig up information that this is a known issue in the current Sierra seed that is fixed in the next release.
这是7月份的讨论，结论是，这个错误是macOS Sierra Beta的问题，但是，我装的Sierra是正式版啊。
继续找最新的讨论，在Xamarin 的论坛上，有人在最近也遇到了类似问题：
https://forums.xamarin.com/discussion/69132/cant-upload-ipa-file-error-itms-90167-no-app-bundles-found-in-the-package
September 21
is there anything new about this? I have macOS Sierra (release) and current Xamarin Studio/Framework running, but Application Loader gives me this error...
然后，又马上回复了解决方法：安装Xcode 8
Sorry - Install of Xcode 8 solved the issue - my App Store was doing strange Stuff - ignore my postings
但是，我装的就是XCode 8 啊。
还好，还有人也回复了另一个方法：用新版的Application Loader
If any one still have an issue, here is my findnings. For me it was an issue with older version of application loader. I tried using 3.6 version of application loader on mac seirra and that works fine.
问题定位
原来升级macOS Sierra(10.12) 后，Application Loader并没有自己升级，而且升级了XCode8以后，旧的Application Loader也没有被替换，还是3.0
有问题的Application Loader版本
解决方法
1. 使用XCode 8 自带的Application Loader (3.6)。【已验证】
启动方法是 XCode菜单 -> Open Developer Tool -> Application Loader
Xcode里启动Application Loader
Application Loader的版本是 3.6
正常的版本
2. 用Xcode 8直接上传，应该也是可以的。不过，由于通过Xcode上传经常出现网络错误，所以我已经放弃这个方法了。【已验证XCode8版本没问题，未验证XCode之前版是否有问题】
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