CM-REQ-4192 Property "Name"(for an Object of Class "Pagelet") is incorrect Error

[jeeva]

Hi Gurus,

when we are saving the dashboard report which consist of prompt page in reports in workspace (Cognos 10.2), it is giving the below error.

CM-REQ-4192 Property "Name"(for an Object of Class "Pagelet") is incorrect

here even after got the error, the dashboard report is saved successfully. but if we open the saved report, it doesn't showing the report widgets.

it happen when we dragged the report with prompt page in workspace. if report doesnot contains any prompt page, its working fine.
 
please refer the attachment to see the error and suggest me..

Thanks.