Error while converting .unv to .unx in IDT

Hi All,

I have two crystal reports in enterprise edition and I want to link these two reports.

I am using universe based on SQL Server as source to parent report and to child report universe based on BEx query as source. So I need to convert that .unv to .unx in IDT for child report.

But while conversion it gives me error as  -

The conversion of OLAP universes is not supported.

Or is there is any another way to resolve this issue.

So please help...