Problem related to TFS workItem.Fields

Hi

i am getting following error,while accessing teamfoundation defect tracking application

"A field definition Symptom in the work item type definition file does not exist. Add a definition for this field or remove the reference to the field and try again."

can any body help?

Thanks Suneetha.

From stackoverflow

• The work items types definition must have been modified : the "Symptom" type has probably been renamed or deleted.

  This can be done using the TFS Power Tools, if you are the admin on the TFS server.