I\'ve just upgraded my app to run on the new iPhone5 simulator, however when I try to build it for my iPhone 4S device, I get this Apple Mach-O Liner error.
The same answer as I gave in this thread:
If you want to remove the support for any architecture, try this:
Project -> Build Settings -> remove the architecture from "valid architectures"
You can use this as a temporary solution until the library has been updated. You have to remove the flag from your own project.