Unity + Terminating with uncaught exception of type Il2CppExceptionWrapper when using Arkit

This is my scenario : I have imported Unity Arkit plugin from asset store. Now I am trying to load a new empty scene from FaceBlendshapeSloth scene. And getting the error below :

libc++abi.dylib: terminating with uncaught exception of type Il2CppExceptionWrapper

I have tried both these methods

1. SceneManager.LoadScene(1);
2. //AsyncOperation ao;
3. //ao=SceneManager.LoadSceneAsync(1);

I have added all required scenes in build setting.