OpenXRControllerModelProvider OpenXR namespace error

[Jose Daniel (VelazcoJD)]

Hello! I am trying to port an existing MRTK HoloLens 2 app to the Magic Leap 2. When building the application for Android, I get the following error message:

Library\PackageCache\com.microsoft.mixedreality.toolkit.foundation@f2323a9b7aec\Providers\OpenXR\Scripts\OpenXRControllerModelProvider.cs(8,30): error CS0234: The type or namespace name 'OpenXR' does not exist in the namespace 'Microsoft.MixedReality' (are you missing an assembly reference?)
Library\PackageCache\com.microsoft.mixedreality.toolkit.foundation@f2323a9b7aec\Providers\OpenXR\Scripts\OpenXRControllerModelProvider.cs(29,26): error CS0246: The type or namespace name 'ControllerModel' could not be found (are you missing a using directive or an assembly reference?)

I am using Unity 2022.3.50f1 and MRTK 2.8.3

Any suggestions on what may be missing? I originally posted this in the Magic Leap forums but was told this is a MRTK issue.