Hello 
When I run any page containing Crystal Report I am getting following error. 
Error: 
The  base class includes the field 'CrystalReportViewer1', but its type  (CrystalDecisions.Web.CrystalReportViewer) is not compatible with the  type of control (CrystalDecisions.Web.CrystalReportViewer).
If anyone knows please tell me how to solve it.
-Thanks