I am getting the following error:

Error 2 An attempt has been made to use a data extension 'OLEDB' that is not
registered for this report server. C:\Documents and
Settings\Administrator.WILLCARE\My Documents\Visual Studio
2005\Projects\Willcare\Willcare\Report2.rdl 0 0

I am trying to design a report to use an OLEDB data source. the designer is
working, I can connect, design the report, preview. everything looks great.
but when i go to publish this, I get the error above.

Advice?