I'm having the same problem. My OSX app was intel only. The architecture is set to "$(ARCHS_STANDARD)" and the scheme is set to "Use Target Setting", I've also tried "Universal". When I build it only the intel gets built. I check this with lipo. At the top center of the xcode window is ther "manage run destinations" drop down this always says "My Mac (Rosetta)". I don't know if this is the problem and how to change it if it is.