Xcode 6.1 Missing required architecture X86_64 in file

Question

In Xcode 6.1 , I am getting error for iPhone 6, iPhone 5s(iOS 7.1) which says

    Undefined symbols for architecture x86_64:
      \"_OBJC_CLASS_$_ClientAut         


        

Answer 1

Setting the build active architectures only to No fixed this problem for me.