ERROR ITMS - 90167 No. app bundles found in the package

Question

Before I start writing about the error, I\'m running on macOS Sierra and using Xcode 7.3.1.

So I\'m creating an Archive from my App, I validate the App and it passes

Answer 1

These are all fabulous answers above... follow Nicholas's 9 step process above and also Tobeiosdev if you don't have write access to the SystemVersion.plist file.

However be very careful about how you read the step by step guide. DO NOT do as I did and restart your device after editing that plist file, as you will render most applications on your mac useless, including Terminal & TextEdit (which are required to edit it back). Reopen terminal inside Sierra (or the beta OS you are running) not inside the command line.

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I unfortunately found out the hard way and then could not edit the plist file again in the command line. So I then had to reboot several times before finding the solution which was to go into single user mode (Command-S on restart), all of which scared me senseless that I had ruined the build of my mac. Eventually got everything running again but was somewhat delayed too by having to reinstall Xcode 8... leading to a sleepless night as my first ever submission to the AppStore.

All in all, the above is a perfect solution that works all around, IF you follow the directions correctly. Lesson learnt!