Did any one use varchar field in RLU PRTF?

I tried this, but my RPG Program is not compiling ? It says:

"Varying Length input field is not defined internally as varying length"

My code is as under:-

My Table is:
Create Table Acc(Acode char(21), Aname Varchar(50))

My RPG Code is as under:-
FACC       IF   E             DISK    RENAME(ACC:ACCN)
FRPTRLU    O    E             PRINTER
 /FREE
  READ ACCN;
  DOW NOT %EOF;
  WRITE DET;
  READ ACCN;
  ENDDO;
  *INLR=*ON;
 /END-FREE


My RLU DDS is:

 A          R DET
 A            ACODE         21A  O     1
 A                                      SPACEB(001)
 A            ANAME         50A  O    +1

Do I have to put Varying Keyword in RLU or RPG ?

Best Regards,

Luqman




Best Regards,

Luqman