crash program after add this code

<rv:ReportViewer x:Name="reportviewer_name" RightToLeft="Yes"/>

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:rv="clr-namespace:Microsoft.Reporting.WinForms;assembly=Microsoft.ReportViewer.WinForms" 
        xmlns:Viewer="clr-namespace:Stimulsoft.Report.Viewer;assembly=Stimulsoft.Report.Wpf" xmlns:WpfDesign="clr-namespace:Stimulsoft.Report.WpfDesign;assembly=Stimulsoft.Report.WpfDesign" xmlns:Wpf="clr-namespace:Stimulsoft.Report.Wpf;assembly=Stimulsoft.Report.Wpf" xmlns:WPF="clr-namespace:Neodynamic.WPF;assembly=Neodynamic.WPF.Barcode" xmlns:WPF1="clr-namespace:Aspose.BarCode.WPF;assembly=Aspose.BarCode.WPF" x:Class="صحب_فثسف_یل.win_print" 
        Title="win_print" Height="632.707" Width="561.654">
    <Grid>
        <Button Content="click the show report" HorizontalAlignment="Left" Margin="24,10,0,0" VerticalAlignment="Top" Width="126" Click="Button_Click"/>
        <WindowsFormsHost HorizontalAlignment="Left" Height="191" Margin="242,2,0,0" VerticalAlignment="Top" Width="309">
            <rv:ReportViewer x:Name="myreportv1"/>
        </WindowsFormsHost>
    </Grid>
</Window>