Json Parse Error line 22: Json Deserialization; unknown member 'EnableGuidedFilterOcclusion' - skipping

Question

I want to load url of 3d model from internet, without saving it in local DB.So, after running my project it shows this error message -

Json Parse Error line 22: Json Deserialization; unknown member 'EnableGuidedFilterOcclusion' - skipping.Warning: in AppendProperty at line 859 of sdf/path.cpp -- Can only append a property 'preliminary:anchoring:type' to a prim path (/) Warning: in AppendProperty at line 859 of sdf/path.cpp -- Can only append a property 'triggers' to a prim path (/)

Please help me to solve this problem. Thanks in advance. Here is my code :

struct Augmen: UIViewRepresentable {
    
    @Binding var location: Location
    
    func makeUIView(context: Context) -> ARView {
        let arView = ARView()
        
        let url = URL(string: location.modelUrl)
        let documents = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
        let destination = documents.appendingPathComponent(url!.lastPathComponent)
        let session = URLSession(configuration: .default,
                                 delegate: nil,
                                 delegateQueue: nil)
        
        var request = URLRequest(url: url!)
        request.httpMethod = "GET"
        
        let downloadTask = session.downloadTask(with: request, completionHandler: { (location: URL?,
                                                                                     response: URLResponse?,
                                                                                     error: Error?) -> Void in
            
            let fileManager = FileManager.default
            
            if fileManager.fileExists(atPath: destination.path) {
                try! fileManager.removeItem(atPath: destination.path)
            }
            do {
                try fileManager.moveItem(atPath: location?.path ?? "",
                                         toPath: destination.path)
            } catch {
                print("error\(error.localizedDescription)")
            }
            
            DispatchQueue.main.async {
                do {
                    
                    let model = try Entity.load(contentsOf: destination)
                    
                    let anchor = AnchorEntity()
                    
                    anchor.addChild(model)
                    
                    arView.scene.addAnchor(anchor)
                    
                    //                    if #available(iOS 15.0, *) {
                    //                        model.playAnimation(model.availableAnimations.first!.repeat() )
                    //                    }
                } catch {
                    print("Fail loading entity.")
                }
            }
        })
        downloadTask.resume()
        
        return arView
    }
    
    func updateUIView(_ uiView: ARView, context: Context) {}
}

Answer 1

import SwiftUI
import ARKit
import RealityKit
class USDZSampleViewModel: ObservableObject{
    let url = URL(string: "https://developer.apple.com/augmented-reality/quick-look/models/drummertoy/toy_drummer.usdz")
    //The completion handler returns when it has the anchor
    func downloadUSDZ(completion:@escaping (AnchorEntity?) -> Void){
        guard let url = url else {
            print("invalid url")
            completion(nil)
            return
        }
        
        if url.absoluteString.suffix(5) != ".usdz"{
            print("not USDZ")
            completion(nil)
            return
        }
        //Mostly your code biggest difference is the completion handler
        let documents = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first!
        let destination = documents.appendingPathComponent(url.lastPathComponent)
        let session = URLSession(configuration: .default,
                                 delegate: nil,
                                 delegateQueue: nil)
        
        var request = URLRequest(url: url)
        request.httpMethod = "GET"
        
        let downloadTask = session.downloadTask(with: request, completionHandler: { (location: URL?, response: URLResponse?, error: Error?) -> Void in
            
            let fileManager = FileManager.default
            
            if fileManager.fileExists(atPath: destination.path) {
                try! fileManager.removeItem(atPath: destination.path)
            }
            do {
                try fileManager.moveItem(atPath: location?.path ?? "",
                                         toPath: destination.path)
            } catch {
                print("error\(error)")
                completion(nil)
            }
            
            DispatchQueue.main.async {
                do {
                    
                    let model = try Entity.load(contentsOf: destination)
                    
                    let anchor = AnchorEntity()
                    
                    anchor.addChild(model)
                    completion(anchor)
                    
                }
                catch {
                    print("Fail load entity: \(error)")
                    completion(nil)
                }
            }
        })
        downloadTask.resume()
        
    }
}
struct USDZSampleView: View {
    @StateObject var vm: USDZSampleViewModel = .init()
    @State var status: Steps = .waiting
    @State var anchor: AnchorEntity? = nil
    var body: some View {
        switch status {
        case .waiting:
            Button("get USDZ", action: {
                status = .fetching
                //This operation is async so we have to wait until the Anchor is ready
                vm.downloadUSDZ(completion: { anchor in
                    self.anchor = anchor
                    //When ready you can create the ARView
                    status = .showAR
                })
            })
            
        case .fetching:
            //Something to show while the download is happening
            ProgressView()
        case .showAR:
            if let anchor = anchor {
                Augmen(anchor: anchor)
            }else{
                Text("the anchor wasn't ready - ERROR")
            }
        }
    }
    
    enum Steps{
        case waiting
        case fetching
        case showAR
    }
}
struct Augmen: UIViewRepresentable {
    var anchor: AnchorEntity
    func makeUIView(context: Context) -> ARView {
        let arView = ARView()
        arView.scene.addAnchor(anchor)
        return arView
    }
    
    func updateUIView(_ uiView: ARView, context: Context) {}
}

struct USDZSampleView_Previews: PreviewProvider {
    static var previews: some View {
        USDZSampleView()
    }
}