Cannot build for iOS with Facebook Unity SDK 7.8.0

I cannot build my xCode project after installing Facebook Unity SDK 7.8.0.... Fatal error in Mono CIL Linker System.Exception: Error processing method: 'System.Void Facebook.Unity.Mobile.Android.AndroidFacebookGameObject::OnAwake()' in assembly: 'Facebook.Unity.dll' ---> Mono.Cecil.ResolutionException: Failed to resolve System.Void UnityEngine.AndroidJNIHelper::set_debug(System.Boolean) at Mono.Linker.Steps.MarkStep.MarkMethod (Mono.Cecil.MethodReference reference) [0x00000] in :0 Does anyone have ideas on how to troubleshoot this issue? I am using Unity 5.2.2f1