ARKit - What are the minimum hardware requirements

What are the minimum hardware requirements for running the ARKit build of the editor?

I can’t get the ARKit build of the editor to start on my MacBook Pro and iMac due to shader compilation issues:

2017-06-27 09:21:56.121331+0100 UE4Editor[51963:976923] [2017.06.27-08.21.56:121] 0]LogShaderCompilers:Warning: 0 Shader compiler errors compiling global shaders for platform SF_METAL_SM5:
2017-06-27 09:23:45.044340+0100 UE4Editor[51963:976923] [2017.06.27-08.23.45:044] 0]LogShaders:Warning: Compiled 1030 global shaders
2017-06-27 09:23:45.173718+0100 UE4Editor[51963:976923] Fatal error: [File:/Users/nickhesketh/Documents/GitHub/UnrealEngine/Engine/Source/Runtime/Engine/Private/ShaderCompiler/ShaderCompiler.cpp] [Line: 4574]
Failed to compile global shader TCubeFilterPS<1>

My setup is:
Mac OS 10.12.5
MacBook Pro (Retina 13-inch, Early 2015)
Intel Iris Graphics 6100

(my iMac also has Intel Iris graphics)

iOS 11 beta 2
Xcode 9 beta 2

Hey,

I’m experience the same issue. Reported it here: ARKit - ARSample - Failed to compile global shader - Rendering - Epic Developer Community Forums