An SPRequest object was not disposed before the end of this thread.

An SPRequest object was not disposed before the end of this thread.  To avoid wasting system resources, dispose of this object or its parent (such as an SPSite or SPWeb) as soon as you are done using it.  Due to flags specified at object creation, this will not be freed until processed by garbage collection.  Allocation Id: {D7B164AB-A421-46AC-80C6-D119DBE511BB}  To determine where this object was allocated, set Microsoft.SharePoint.Administration.SPWebService.ContentService.CollectSPRequestAllocationCallStacks = true.


Solution - Related web application pool stop and start again and it works fine for me :)