I'm getting the following error message when I go to the preview tab:

An error has occurred during report processing.
Cannot read the next data row for the data set DataSet1.
'startstatus' parameter is missing at the statement.

What does that mean, and how can I fix it?



For more information, this is what I did in the Data Tab:

The query,
 SELECT ...status...
 FROM ...
 WHERE status=@startstatus <--I tried the query w/ and w/o this line, same result

In Parameters, for Name, I have the name of the parameter I created under Report Parameters, called 'startstatus'. The Value is =Parameters!startstatus.Value.


I'd really appreciate the help. Thanks!