Sample reports error

How come i get this:
a.. An error has occurred during report processing. (rsProcessingAborted)
Get Online Help
a.. Query execution failed for data set 'SalesOrder'.
(rsErrorExecutingCommand) Get Online Help
a.. Must declare the variable '@.SalesOrderNumber'.
----
--
when trying to run sales order detail ?
Don't have visual studio on my machine but that shoudln't be necessary to
run reports in report manager ?Have you added the right DataSource in report manager?
The samples comes without the Data Source, so you have to add that manually.
Kaisa M. Lindahl
"Michael Vardinghus" <michaelvardinghus@.hotmail.com> wrote in message
news:uBBGi0X1EHA.3708@.TK2MSFTNGP14.phx.gbl...
> How come i get this:
> a.. An error has occurred during report processing.
(rsProcessingAborted)
> Get Online Help
> a.. Query execution failed for data set 'SalesOrder'.
> (rsErrorExecutingCommand) Get Online Help
> a.. Must declare the variable '@.SalesOrderNumber'.
> ----
--
> --
>
> when trying to run sales order detail ?
> Don't have visual studio on my machine but that shoudln't be necessary to
> run reports in report manager ?
>