Error   CS0121  The call is ambiguous between the following methods or properties: 'MainWindow.InitializeComponent()' and 'MainWindow.InitializeComponent()'

/// <summary>

/// Interaction logic for MainWindow.xaml

/// </summary>

public partial class MainWindow : Window

{

    public MainWindow()

    {

        InitializeComponent();

    }

    private bool button1Clicked = false;

    public bool Windows1 = false;

    private void Button_Click_1(object sender, RoutedEventArgs e)

    {

        void StartWindows_Click()

        {

            button1Clicked = true;

            if (Windows1)

            {

                Windows1 win = new Windows1();

                win.ShowDialog();

            }

            // add later versions when i can
        }

        if (WindowsOption1.IsChecked == true)

        {

            Windows1 = true;
        }

    }

    private string UsernameValue = string.Empty;

    private void Username_TextChanged(object sender, TextChangedEventArgs e)
    {

        UsernameValue = Username.Text;

    }

}