Kann nicht warten auf 'Void', auch wenn Sie mit Aufgabe

Habe ich ein problem. Ich bin versucht zu ändern, eine app, die ich schon vor längerer Zeit gemacht und es Funktioniert immer noch auf die WP-Handy, aber jetzt versuche ich es zum laufen bekomme diesen Fehler:

Auf erwarte ich:

nicht erwarten 'void'.

Wenn ich leere zur Aufgabe der Fehler ist immer noch

Nicht erwarten 'void'

Habe ich auch nicht void mehr.

Kann mir jemand helfen ?

namespace StreamUploadDownload
{
    using System.Threading;
    public partial class Page1 : PhoneApplicationPage
    {
        private PhotoCamera _cam;
        private double _canvasWidth;
        private double _canvasHeight;
        private MediaLibrary _library = new MediaLibrary();
        public int count = 100;
        private static readonly string[] scopes = new string[] { "wl.signin", "wl.basic", "wl.offline_access", "wl.skydrive_update", "wl.skydrive" };
        string comboValue;
        private LiveConnectClient liveClient;
        public int x = 0;
        public int y = 0;  

        public string FileText { get; set; }
        public int ComboNumber { get; set; }
        public int ConnectionOK { get; set; }

        public Page1()
        {
            InitializeComponent();    
        }

        private void OnSessionChanged(object sender, LiveConnectSessionChangedEventArgs e)
        {
            this.liveClient = (e.Status == LiveConnectSessionStatus.Connected) ? new LiveConnectClient(e.Session) : null;
            if (e.Status == LiveConnectSessionStatus.Connected)
            {
                btnSignin.Visibility = Visibility.Collapsed;
                Pildista.Visibility = Visibility.Visible;
                //Pildista2K.Visibility = Visibility.Visible;
                Pildista.Content = "Pildista";    
            }
            else
            {
                Pildista.Visibility = Visibility.Collapsed;
                //Pildista2K.Visibility = Visibility.Collapsed;
                btnSignin.Visibility = Visibility.Visible;
            }
        }    

        protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
        {
            if ((PhotoCamera.IsCameraTypeSupported(CameraType.Primary) == true) ||
                 (PhotoCamera.IsCameraTypeSupported(CameraType.FrontFacing) == true))
            {
                if (PhotoCamera.IsCameraTypeSupported(CameraType.Primary))
                {
                    _cam = new Microsoft.Devices.PhotoCamera(CameraType.Primary);
                    _cam.Initialized += new EventHandler<CameraOperationCompletedEventArgs>(cam_Initialized);
                    _cam.CaptureImageAvailable += new EventHandler<ContentReadyEventArgs>(cam_CaptureImageAvailable);
                    viewfinderBrush.SetSource(_cam);

                    //CameraButtons.ShutterKeyPressed += OnButtonFullPress;

                    base.OnNavigatedTo(e);
                    if (PhoneApplicationService.Current.State.ContainsKey("Text"))
                    {
                        txtvalue.Text = (string)PhoneApplicationService.Current.State["Text"];
                        FileText = txtvalue.Text;
                    }
                    if (PhoneApplicationService.Current.State.ContainsKey("index"))
                    {
                        ComboNumber = (int)PhoneApplicationService.Current.State["index"];
                    }
                    else
                    {
                        //The camera is not supported on the device.
                        this.Dispatcher.BeginInvoke(delegate()
                        {
                            //Write message.    
                        });

                        //Disable UI.    
                        AFButton.IsEnabled = false;    
                    }    
                }
            }
        }

        private double GetCameraAspectRatio()
        {
            IEnumerable<Size> resList = _cam.AvailableResolutions;

            if (resList.Count<Size>() > 0)
            {
                Size res = resList.ElementAt<Size>(0);
                return res.Width / res.Height;
            }

            return 1;
        }

        void cam_Initialized(object sender, Microsoft.Devices.CameraOperationCompletedEventArgs e)
        {
            if (e.Succeeded)
            {
                this.Dispatcher.BeginInvoke(delegate()
                {
                    _canvasHeight = Application.Current.Host.Content.ActualWidth;
                    _canvasWidth = _canvasHeight * GetCameraAspectRatio();

                    viewfinderCanvas.Width = _canvasWidth;
                    viewfinderCanvas.Height = _canvasHeight;
                });
            }
        }   

        //Failinime andmine ning salvestamine.
        private async void cam_CaptureImageAvailable(object sender, Microsoft.Devices.ContentReadyEventArgs e)
        {
            if (ComboNumber == 1)
            {
                comboValue = "O";
            }
            if (ComboNumber == 2)
            {
                comboValue = "T";
            }
            if (ComboNumber == 3)
            {
                comboValue = "S";
            }
            if (ComboNumber == 4)
            {
                comboValue = "P";
            }
            if (ComboNumber == 5)
            {
                comboValue = "A";
            }
            if (ComboNumber == 6)
            {
                comboValue = "M";
            }

            string fileName = String.Format(FileText + "_" + comboValue + "_" + DateTime.Now.ToString("dd-MM-yyyy_HH-mm-ss") + ".jpg");    

            try
            {    
                LiveOperationResult operationResult = await this.liveClient.UploadAsync("/me/skydrive", fileName, e.ImageStream, OverwriteOption.Overwrite); //Cannot await 'void'    
            }

            catch (LiveConnectException ex)
            {
                //e.ImageStream.Close();
                //this.infoTextBlock.Text = "Error getting contact info: ";
                //this.infoTextBlock.Visibility = Visibility.Visible;    
            }
            finally
            {    
                e.ImageStream.Close();
                y++;
                Dispatcher.BeginInvoke(delegate()
                {
                    string b = Convert.ToString(y);
                    loobvalue2.Text = b;
                });    
            }    
        }    

        //kaameranupu vajutus.

        private void takephoto_Click(object sender, RoutedEventArgs e)
        {    
            if (_cam != null)
            {    
                _cam.CaptureImage();
                x++;
                string s = x.ToString();
                loobvalue.Text = s;    
            }    
        }   

        //Ühenduse Loomine. Session load.
        private async void connectButton_Click(object sender, RoutedEventArgs e)
        {
            bool connected = false;
            try
            {
                var authClient = new LiveAuthClient("RemovedforWeb");
                LiveLoginResult result = await authClient.LoginAsync(new string[] { "wl.signin", "wl.skydrive" }); //cannot await 'void'

                if (result.Status == LiveConnectSessionStatus.Connected)
                {
                    connected = true;
                    var connectClient = new LiveConnectClient(result.Session);
                    var meResult = await connectClient.GetAsync("me");
                    dynamic meData = meResult.Result; //cannot await 'void'
                    }
                else
                {
                    //btnSignin.Visibility = Visibility.Visible;
                }    
            }
            catch (LiveAuthException ex)
            {

            }

EDIT: ich fügte hinzu, mehr code und wies auf problematische Plätze