Can't build ios app with 64bit Support

Question

I’m trying to build my ios app and I’m having an issue with adding 64 bit support. Basically I added the arm64 to my valid architectures and set build active architectures only to no but I’m still getting the following error:

Undefined symbols for architecture arm64:
  "_OBJC_CLASS_$_RKSearchPredicate", referenced from:
      objc-class-ref in CatalogController.o

If I remove the 64bit from my architecture and simply have arm7 then I'm not having any issues. Any advice or pointers would be appreciated.

FYI I already unplugged my devices and also tried deleting the DerivedData folder.

Answer 1

Sounds like you need to get an updated version of RestKit. Get it here: https://github.com/RestKit/RestKit

Looks like RK was updated in April of 2014 to support 64 bit (v0.23.1)