UpdatedViewDidLoad.swift

override func viewDidLoad() {
        super.viewDidLoad()
        
        sceneView.delegate = self
        sceneView.showsFPS = true
        sceneView.showsNodeCount = true
        
        if let scene = SKScene(fileNamed: "Scene") {
            sceneView.presentScene(scene)
        }
        
        guard let referenceImages = ARReferenceImage.referenceImages(inGroupNamed: "Mona Lisa Room", bundle: nil) else {
            fatalError("Missing expected asset catalog resources.")
        }
        
        let configuration = ARWorldTrackingConfiguration()
        configuration.detectionImages = referenceImages
        
        sceneView.session.run(configuration, options: [.resetTracking, .removeExistingAnchors])
    }