Unbalanced calls to begin/end appearance transitions for <ZMRootNavigationController: 0x10f03ba00>

I’m developing with swiftUI and zoom-sdk-ios-5.13.1.6095.

I implemented fundamental function in UIViewControllerRepresentable and called the Controller in View like:

VStack {
ZoomController()
}

Then I got error message Unbalanced calls to begin/end appearance transitions for <ZMRootNavigationController: 0x10f03ba00>. and even AVCaptureDevice.requestAccess seems not working properly

I copied and pasted code that other developer wrote in this forum.

import Foundation
import SwiftUI
import MobileRTC
import AVFoundation

struct StartZoomVC: UIViewControllerRepresentable {
    
    @Binding var meetingNumber: String
    @Binding var passCode: String
    let newVC = UIViewController()
    
    private let delegate: MobileRTCMeetingServiceDelegate
    //private let authDelegate: MobileRTCAuthDelegate
    
    init(delegate: MobileRTCMeetingServiceDelegate, zoomMeetingNumber: Binding<String>, zoomPasscode: Binding<String>) {
        self._meetingNumber = zoomMeetingNumber
        self._passCode = zoomPasscode
        self.delegate = delegate
    }
    
    func makeUIViewController(context: Context) -> UIViewController {
        newVC.view.tag = 83838383
        newVC.view.backgroundColor = .white
        MobileRTC.shared().setMobileRTCRootController(newVC.navigationController)
        return newVC
    }
    
    func updateUIViewController(_ taskViewController: UIViewController, context: Context) {
        askPermissionsForCameraFeed()
        print("check video permissions")
      
    }
    
    func askPermissionsForCameraFeed() {
        AVCaptureDevice.requestAccess(for: AVMediaType.video) { response in
            if response {
                //access granted
                getMainWindowToShareWithAppDelegate()
            } else {
                print("wtf")
            }
        }
    }
    
    func getMainWindowToShareWithAppDelegate(){
        
 
        DispatchQueue.main.async {
//            let scene = UIApplication.shared.connectedScenes.first
//            let windowSceneDelegate = scene?.delegate as? UIWindowSceneDelegate
//            let window = (windowSceneDelegate?.window)!
//            let delegate = UIApplication.shared.delegate as! AppDelegate
//            delegate.window = window
//            print("finding window to provide to zoom sdk")
//            print(meetingNumber)
//            print(passCode)
            joinMeeting(meetingNumber: meetingNumber, meetingPassword: passCode)
        }
        
        
    }
    func startMeeting() {
        // 5. Obtain the MobileRTCMeetingService from the Zoom SDK, this service can start meetings, join meetings, leave meetings, etc.
        if let meetingService = MobileRTC.shared().getMeetingService() {
            
            
            //6. Set the ViewContoller to be the MobileRTCMeetingServiceDelegate
            meetingService.delegate = delegate

            /*** 5. Create a MobileRTCMeetingStartParam to provide the MobileRTCMeetingService with the necessary info to start an instant meeting. In this case we will use MobileRTCMeetingStartParam4LoginlUser(), since the user has logged into Zoom. ***/
            let startMeetingParameters = MobileRTCMeetingStartParam4LoginlUser()

            // 6. Call the startMeeting function in MobileRTCMeetingService. The Zoom SDK will handle the UI for you, unless told otherwise.
            meetingService.startMeeting(with: startMeetingParameters)
        }
    }
    
    /*func logIn(email: String, password: String) {
        // 2. Obtain the MobileRTCAuthService from the Zoom SDK, this service can log in a Zoom user, log out a Zoom user, authorize the Zoom SDK etc.
        if let authorizationService = MobileRTC.shared().getAuthService() {
             // 3. Call the login function in MobileRTCAuthService. This will attempt to log in the user.
            //authorizationService.login(withEmail: email, password: password, rememberMe: false)
            
        }else {
            print("authorization service failed")
        }
    }*/
    
    func joinMeeting(meetingNumber: String, meetingPassword: String) {
            // Obtain the MobileRTCMeetingService from the Zoom SDK, this service can start meetings, join meetings, leave meetings, etc.
            if let meetingService = MobileRTC.shared().getMeetingService() {


                // Create a MobileRTCMeetingJoinParam to provide the MobileRTCMeetingService with the necessary info to join a meeting.
                // In this case, we will only need to provide a meeting number and password.
                // 2. Set the ViewContoller to be the MobileRTCMeetingServiceDelegate
                meetingService.delegate = delegate
                
                let joinMeetingParameters = MobileRTCMeetingJoinParam()

                joinMeetingParameters.meetingNumber = meetingNumber
                joinMeetingParameters.password = meetingPassword

                MobileRTC.shared().getMeetingSettings()?.disableShowVideoPreview(whenJoinMeeting: true)
                MobileRTC.shared().getMeetingSettings()?.enableCustomMeeting = false
             
                if #available(iOS 13.0, *) {
                    // 13.0 and above
                    //MobileRTC.shared().setMobileRTCRootController(self.newVC as? UINavigationController)
                }

                // Call the joinMeeting function in MobileRTCMeetingService. The Zoom SDK will handle the UI for you, unless told otherwise.
                // If the meeting number and meeting password are valid, the user will be put into the meeting. A waiting room UI will be presented or the meeting UI will be presented.
                DispatchQueue.main.async {
                    meetingService.joinMeeting(with: joinMeetingParameters)
                }
               
            }
        }

}

extension StartZoomVC {
    class Delegate: NSObject, MobileRTCMeetingServiceDelegate {

        func onMeetingError(_ error: MobileRTCMeetError, message: String?) {
           
            switch error {
            case .passwordError:
                print("Could not join or start meeting because the meeting password was incorrect.")
            case .success:
                print("onMeetingError : MobileRTCMeetError_Success")
            default:
                print("Could not join or start meeting with MobileRTCMeetError: \(error) \(message ?? "")")
            }
        }
        func onMeetingEndedReason(_ reason: MobileRTCMeetingEndReason) {
            print("Join meeting end reason.")
        }
        // Is called when the user joins a meeting.
        func onJoinMeetingConfirmed() {
            print("Join meeting confirmed.")
            if let meetingService = MobileRTC.shared().getMeetingService() {
                meetingService.meetingView()
                print("what am I seeing !")
            }

        }
        // Is called upon meeting state changes.
        func onMeetingStateChange(_ state: MobileRTCMeetingState) {
           print("onMeetingStateChange")
            print(state)
            switch state {
            case .connecting:
                print("Connecting")
            case .disconnecting:
                print("disconnecting")
            case .ended:
                print("ended")
            case .failed:
                print("failed")
            case .idle:
                print("idle")
            case .inMeeting:
                print("in meeting")
            case .inWaitingRoom:
                print("in waiting room")
            case .joinBO:
                print("join bo")
            case .leaveBO:
                print("leave bo")
            case .locked:
                print("locked")
            case .reconnecting:
                print("reconnecting")
            case .unknow:
                print("unknown")
            case .unlocked:
                print("unlocked")
            case .waitingForHost:
                print("waiting for host")
            case .webinarDePromote:
                print("de promote")
            case .webinarPromote:
                print("promote")
            default:
                print("bad things happened")
            }
        }
     }
 }

Please help me to make it perfect in SwiftUI.

Thanks for your help.