Diagnosis
You tried to remove a functional group from the functional area, butone of the fields of this functional group is still being used inqueries.

Procedure
Before you remove a functional group from a functional area, you mustmake sure that none of the fields of the functional group is being usedin a query. With the directory functions you can display all thequeries that use the field specified in the error message. Change thesequeries so that the field is no longer used or delete the queries. Youcan then try again to remove the functional group from the functionalarea.