Library/PackageCache/com.magicleap.unitysdk@b73c97408eb9/Runtime/OpenXR/MagicLeapFeature.cs(20,9): error CS0246: The type or namespace name 'CustomRuntimeLoaderBuildTargets' could not be found (are you missing a using directive or an assembly reference?)
@maks it is possible to work around this to get you going.
Uninstall the OpenXR package from your project
or if you need the OpenXR package for other platforms (as we do)
Use a modified version of the package. Just unzip to somewhere in your Unity project outside of the Assets folder (we create a folder called ModifiedPackages) and then add it from disk in the package manager. The only modification to this is the runtime asmdef is modified to reference the the OpenXR package by package name instead of GUID.