iOS xcode Mach-O Linker Error on latest Unity and xcode

I just updated Unity to 4.5.5 and xcode is also fully up to date with 6.1
When I build for iOS I get two Apple Mach-O Linker Errors.

Undefined symbols for architecture armv7:
OBJC_CLASS$_ASIdentifierManager”, referenced from:
objc-class-ref in GA_UserID.o
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Any thoughts on how to resolve this? I’m not much good on the xcode nitty gritty…

Turns out in xCode you have to manually add the “AdSupport.framework” under Build Phases… I imagine this is a bug Unity will fix soon, since it only cropped up recently.