SharePoint 2013-SSRS 2012 not working when i am adding rdl to MicroSoft SharePoint Report Services Webpart

HI Team,

I have successfully integrates SSRS 2012 in SharePoint 2013.

But when i am adding RDL to Microsoft SQL server Reporting Services webpart in SharePoint, i am getting following error

"Microsoft.ReportingServices.Diagnostics.Utilities.ItemNotFoundException".

Kindly can any give any inputs how to resolve this issue.

With Regards

Sivakumar k