Crystal Reports Missing field error

Message

   Hi,

I have developed a report and it is working fine when i execute it in the IDE's (both in Crystal Reports XI and visual studio 2005).  But when i ran it in the web the following error is displayed

One or more fields could not be found in the result set. Use Verify Database to update the report. Error in File C:\Temp\ProformaVariance {BA42D853-37D5-46F2-ABDA-351E7FF8E267}.rpt: The rowset column could not be found.

But none of the fields are missing in the returning data from the DB(ms sql server 2005).

Can any one help me on this. 

Thanks and Rgds,

Seenivasan