I\'ve had an iOS project in fairly stable condition up until Xcode 8\'s public release. After a bit of confusion with the Migrator, I finally convinced the compiler that I d
Had the exact same problem. I tried upgrading to Sierra which seemed to update bits of Xcode etc. The new error message was formatted differently, so I could not see the "434" (With 1 success in 15 attempts (I had to tweak a version number in a string in the app, so didn't choose to upload after that brief moment of joy), i just uploaded the archive anyway, and after 2 hours of processing, it was accepted. I will update when my new app version is live to verify this error can be safely ignored, at least in some cases (e.g. I checked all my graphics' color profiles, etc.).