Undefined symbols for architecture armv7:
  "_OBJC_CLASS_$_EKEvent", referenced from:
      objc-class-ref in Tapjoy(Tapjoy)
  "_OBJC_CLASS_$_EKEventStore", referenced from:
      objc-class-ref in Tapjoy(Tapjoy)
  "_OBJC_CLASS_$_SKStoreProductViewController", referenced from:
      objc-class-ref in Tapjoy(Tapjoy)
  "_OBJC_CLASS_$_MFMessageComposeViewController", referenced from:
      objc-class-ref in Tapjoy(Tapjoy)
  "_OBJC_CLASS_$_MFMailComposeViewController", referenced from:
      objc-class-ref in Tapjoy(Tapjoy)
  "_OBJC_CLASS_$_CTTelephonyNetworkInfo", referenced from:
      objc-class-ref in Tapjoy(Tapjoy)
  "_SKStoreProductParameterITunesItemIdentifier", referenced from:
      -[TJAdUnitJSBridge displayStoreURL:callback:] in Tapjoy(Tapjoy)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)