How to use dimensions in AX 2009 ssrs report?

Hi,

I am creating a report in AX 2009 ssrs on LedgerTrans table.

I want to show the dimensions in my report. But it gives the following the error:

"Data method 'dsTransactionDetailReport' invocation failed. Fix the data method so that it returns a valid System.DataTable before binding to it.
Original error message:
Column 'Dimension[2]' does not belong to table ."

Regards,

Lalasa