类型或名称空间名称“ Deployment”在名称空间“ System.Windows”中不存在

我目前正在尝试通过将文件链接到wpf库来将silverlight项目更改为wpf，以便以后可以同时使用这两个应用程序。我从silverlight项目链接到wpf项目的文件给我这个错误：

错误27类型或名称空间名称“部署”在名称空间“ System.Windows”中不存在（您是否缺少程序集引用？）C：\ Users \ sahluwai \ Desktop \ cusControls2 \ leitch \ HarrisSilverlightToolkit \ Toolkit \ Source \ Controls \ Input \ IpAddressControl \ CcsIPAddressControl.cs 854 36输入

我确保该文件的顶部具有“ using System.Windows”。

这是函数的样子，它有错误（请查看注释以查看示例错误位置）：

private bool ValidateIpOctet(TextBox IpOctet, int OctetIndex)
    {
        bool redraw = false;

        if (OctetIndex < 0 || OctetIndex >= this.m_IpAddress.IpOctets.Length)
            return redraw;

        int i = OctetIndex;

        this.m_IpAddress.IpOctets[i] = String.IsNullOrEmpty(IpOctet.Text) ? "0" : IpOctet.Text;

        uint iOctet = uint.Parse(this.m_IpAddress.IpOctets[i]);
        if (i == 0)
        {
            if (Rule == NetworkInterfaceRule.IP || Rule == NetworkInterfaceRule.GATEWAY)
            {
                if (iOctet > 223)
                {
                    redraw = true;
                    this.m_IpAddress.IpOctets[i] = "223";
                    System.Windows.Deployment.Current.Dispatcher.BeginInvoke(
                        delegate()
                        {
                            MessageBox.Show(String.Format("{0} is not a valid entry. Please specify a value between 1 and 223.", this.IpAddress), "Error", MessageBoxButton.OK);
                        });
                }
                else if (iOctet < 1)
                {
                    redraw = true;
                    this.m_IpAddress.IpOctets[i] = "1";
                    System.Windows.Deployment.Current.Dispatcher.BeginInvoke(
                        delegate()
                        {
                            MessageBox.Show(String.Format("{0} is not a valid entry. Please specify a value between 1 and 223.", this.IpAddress), "Error", MessageBoxButton.OK);
                        });
                }
            }
            else
            {
                if (iOctet > 255)
                {
                    redraw = true;
                    this.m_IpAddress.IpOctets[i] = "255";


 /////////////////////////////////////////////////////////////////////////
 //////////////////////this is one place where i am facing this error:

                    System.Windows.Deployment.Current.Dispatcher.BeginInvoke(
                        delegate()
                        {
                            MessageBox.Show(String.Format("{0} is not a valid entry. Please specify a value between 0 and 255.", this.IpAddress), "Error", MessageBoxButton.OK);
                        });
                }
                else if (iOctet < 0)
                {
                    redraw = true;
                    this.m_IpAddress.IpOctets[i] = "0";
                    System.Windows.Deployment.Current.Dispatcher.BeginInvoke(
                        delegate()
                        {
                            MessageBox.Show(String.Format("{0} is not a valid entry. Please specify a value between 0 and 255.", this.IpAddress), "Error", MessageBoxButton.OK);
                        });
                }
            }
        }
        else
        {
            if (iOctet > 255)
            {
                redraw = true;
                this.m_IpAddress.IpOctets[i] = "255";
                System.Windows.Deployment.Current.Dispatcher.BeginInvoke(
                    delegate()
                    {

                        MessageBox.Show(String.Format("{0} is not a valid entry. Please specify a value between 0 and 255.", this.IpAddress), "Error", MessageBoxButton.OK);
                    });
            }
            else if (iOctet < 0)
            {
                redraw = true;
                this.m_IpAddress.IpOctets[i] = "0";
                System.Windows.Deployment.Current.Dispatcher.BeginInvoke(
                    delegate()
                    {
                        MessageBox.Show(String.Format("{0} is not a valid entry. Please specify a value between 0 and 255.", this.IpAddress), "Error", MessageBoxButton.OK);
                    });
            }
        }

        this.IpAddress = this.m_IpAddress.ToString();
        return redraw;
    }