Operation illegal on linked parameters in Crystal Report.

Question

Hai,

Am doing .net 2005 with windows application in c#.

I make  a function to generate crystal report we can pass the report name and dataset then bind report in BL layer. Also pass the parameters and selection formula. its work properly. But the problem is some reports use this function then catch the Error like,

"C:\Documents and Settings\Administrator\Local Settings\Temp\'Reportname'{18278F70-774A-41FC-8C55-DEF82895B36B}.rpt

Operation illegal on linked parameters"

In my report there have only two parameter fields that was passed with this function. But that parameters are in the subreport.

Thanks in advance