ssrs report Aufruf mit Parameter über url

Reportserverurl
/Pages/ReportViewer.aspx?
%2fDirectoryname
%2fBerichtsname
&rs:Command=Render (kann auch weggelassen werden)

z.b.:
http://servername/ReportServer_SQLEXPRESS/Pages/ReportViewer.aspx?%2fDirectory%2fBerichtname&rs:Command=Render


Parameterübergabe:
nach Berichtsname:
&Parametername=Parameterwert


https://myrshost/ReportServer?/AdventureWorks 2008R2/Employee_Sales_Summary_2008R2&ReportMonth=3&ReportYear=2008

Error 'the subreport could not be found at the specified location. Please verify that the subreport has been published and that the name is correct'

Error 'the subreport could not be found at the specified location. Please verify that the subreport has been published and that the name is correct'

delete all *-rdl.data files