You have declared a file using the SELECT statement in the Environment Division of your program, but have either failed to
                  define it in a corresponding FD entry in the Data Division or have used a different filename in the FD entry, perhaps owing
                  to a spelling mistake. If a mismatch of the two occurs then the record associated with the file does not exist although the
                  necessary space has been created for it.
            
            
               
               Resolution:
               
               Add or revise the FD entry.