When I am trying to upload my code to appStore I met this issue. and I have tried to set Active Architecture to NO according to some search. but the issue is still there. I noticed that in my project, by default I can not see "arm64" in "Valid Architectures" entry. only "armv7 armv7s", why? if I add arm64 to that entry, I got a lot of compiling issue like " implicit declaration of function 'bcopy' is invalid in C99".
Any ideas about this? Thanks.
I don't know if answer it but:
Apple just announced that starting 1. February 2015, apps have to support 64 bit. So, it will then be a requirement.
Then maybe shown errors was because you have statements no compatible with 64 bits architecture.