Error when submitting app to iTunes: "Application executable is missing a required architecture"

please i need some help.

I got this message in Organiser when trying to submit my app to iTunes connect: "iPhone/iPod Touch; application executable is missing a requir开发者_开发知识库ed architecture. At least one of the following architecture(s) must be present: armv6 ". There is no problem when building for on a iPhone or simulator.

I use xcode 4

Thank for any help:

Check the project build settings "Architectures". You're likely building with "Optimized armv7" instead of "Standard armv6, armv7". Your iPhone (3GS or 4) can handle armv7 but I think some of the older devices you may be targeting once you get to iTunes (iPhone 2G/3G, iPod 1G/2G) can't and require armv6.