Error on extended check for types include structure statements

Question

Hi All ,
              On Extended check im getting error :
Program:  ZFIR_VALUATE_OBSOLETE_STOCK  Include:  ZFIR_VALUATE_OBSOLETE_STOCK_F  Row:   1205
The current ABAP command is obsolete
Within classes and interfaces, you can only use "TYPE" to refer to ABAP Dictionary
types, not "LIKE" or "STRUCTURE".
Internal Message Code: MESSAGE G/B
(The message cannot be hidden using pseudo-comment "#EC .., bzw. durch SET
EXTENDED CHECK OFF/ON)
The error is in below line :
TYPES: BEGIN OF t_fttax.
          INCLUDE STRUCTURE fttax.
  TYPES: END OF t_fttax.
and fttax is a dictionary strucuture . i made internal table and work area using it .
DATA: i_fttax TYPE STANDARD TABLE OF t_fttax,
        wa_fttax TYPE t_fttax.
Need Help ,what i should do to remove this error ?
Regards

Answer 1

declare as :
DATA: i_fttax TYPE STANDARD TABLE OF fttax,
           wa_fttax TYPE fttax.
No need to declare as :
TYPES: BEGIN OF t_fttax.
          INCLUDE STRUCTURE fttax.
  TYPES: END OF t_fttax.