Question Warnings in editor when using custom XRSystem

We're working on a custom XR SDK Subsystem. Everything works fine, but in the editor we're getting a warning message since ARFoundation 4:

⚠️ No active UnityEngine.XR.XRInputSubsystem is available. Please ensure that a valid loader configuration exists in the XR project settings.

We didn't get that warning in ARFoundation 3.x as far as I'm aware, and frankly are not sure what that means, as far as I can see neither ARKit nor ARCore backends contain an explicit XRInputSubsystem besides creating it in the loader (what we do as well).

Any insights how to get rid of that warning?

 

Starting with ARFoundation 4, we rely on the XR Management package for the management of subsystems. See the documentation for XR Management https://docs.unity3d.com/Packages/com.unity.xr.management@latest .

 

XRInputSubsystem is an integrated subsystem and is registered and implemented on native side. I tried to register it in Editor using Reflection, but this is just crashing Unity. I think it crashes because there is no implementation found.

WARNING, THIS CODE CRASHES UNITY

Assembly.Load("UnityEngine.SubsystemsModule")

    .GetType("UnityEngine.Internal_SubsystemDescriptors")

    .GetMethod("Internal_InitializeManagedDescriptor", BindingFlags.NonPublic | BindingFlags.Static)

    .Invoke(null, new object[] {IntPtr.Zero, new XRInputSubsystemDescriptor()});

 

I am not using a custom XR SDK Subsystem, just the regular ARKit/ARCore XR Plugins, and get 4 similar warnings in the Editor.

The apps are compiling and working for iOS and Android thought. In previous ARFoundation versions, I could fake a PlaneDetection and debug in the Editor.

 

@Dalton-Lima our implementation that I was referring to in my original question is now done and released - you can test a lot of ARFoundation features right in the Editor with it, for example planes, meshing, anchors, pointclouds, image tracking, ...
Link in my signature or here: get.needle.tools/ar-simulation

 

Thanks @fherbst
Already bought it, seems very polished!

 

@fherbst I have your AR Simulation package but I am getting the same "No active UnityEngine.XR.XRInputSubsystem is available." error as you did above. And no input is happening in the Game View. It was working in ARF 3.x but just upgraded to 4.1.1. Is ARS not working with that? Please advise. Thanks.