Integration of Pentaho Reports with Eclipse

I am trying to integrate Pentaho reports with Eclipse with the help of pentaho reporting sdk engine. Reports are getting deployed succesfully till there is no subreport and function in it.
Sub reports are not getting deployed if a parameter is defined in it. Error is coming as ReportDataFactoryException. If I remove parameters, sub report is working fine too.
Please help me by guiding that where i am going wrong.