Compose interactive 3D content in Reality Composer Pro -- Build Error

Compilation of the project for the WWDC 2024 session title Compose interactive 3D content in Reality Composer Pro fails.

After applying the fix mentioned here (https://developer.apple.com/forums/thread/762030?login=true), the project still won't compile.

Using Xcode 16 beta 7, I get these errors:

error: [xrsimulator] Component Compatibility: EnvironmentLightingConfiguration not available for 'xros 1.0', please update 'platforms' array in Package.swift
error: [xrsimulator] Component Compatibility: AudioLibrary not available for 'xros 1.0', please update 'platforms' array in Package.swift
error: [xrsimulator] Component Compatibility: BlendShapeWeights not available for 'xros 1.0', please update 'platforms' array in Package.swift
error: [xrsimulator] Exception thrown during compile: compileFailedBecause(reason: "compatibility faults")
error: Tool exited with code 1