Error HRESULT E_FAIL has return from call to a COM component.

[Shakti SIngh Dulawat]

I have a problem while I am trying to add telerik reportviewer in silverlight application.
I am getting error:
Error HRESULT E_FAIL has return from call to a COM component.

I am trying below written code:
<controls:ChildWindow x:Class="ImageEditor.TReportView"
           xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
           xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
           xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls"
           Width="650" Height="900" xmlns:telerikReport="clr-namespace:Telerik.ReportViewer.Silverlight;assembly=Telerik.ReportViewer.Silverlight"
           Title="TReportView">
    <Grid x:Name="LayoutRoot" Background="White" >
        <telerikReport:ReportViewer Margin="5,5,5,5" UseNativePrinting="False"  Name="reportViewer" Width="Auto" Height="Auto" ReportServerUri="../ReportService.svc" 
    </Grid>
</controls:ChildWindow>


Telerik.Reporting.Service, Version=5.1.11.713
Telerik.ReportViewere.Silverlight version =5.1.11.713
VS2010 in windows 2007

Thanks!
SSD

[Steve]

Hi,

Thank you for your interest in Telerik Reporting.

Prior to adding the Silverlight Report Viewer you have to download and install RadControls for Silverlight. The Silverlight report viewer depends on the following  assemblies:

RadControls for Silverlight assemblies:

• Telerik.Windows.Controls.dll
• Telerik.Windows.Controls.Input.dll
• Telerik.Windows.Controls.Navigation.dll

Telerik ReportViewer assembly:

• Telerik.ReportViewer.Silverlight.dll

For a demo project you can check out the demos that came with your installation of Telerik Reporting:
Start -> All Programs -> Telerik -> Reporting Q2 2010. 

For a video how-to check out Getting Started with Telerik Report Viewer for Silverlight.
For more information check out the following help articles:

• Embedding the Silverlight Viewer
• Telerik Reporting WCF Service

Regards,
Steve
the Telerik team