i am currently working 4.ob version and i am getting the following error

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TABLES : tadir,

trdir,

tfdir.

SELECTION-SCREEN BEGIN OF BLOCK blk1 WITH FRAME TITLE text-100.

SELECT-OPTIONS : s_class FOR tadir-devclass,

s_prog FOR tadir-obj_name,

s_cnam FOR trdir-cnam.

SELECTION-SCREEN END OF BLOCK blk1.

SELECTION-SCREEN BEGIN OF BLOCK blk2 WITH FRAME TITLE text-110.

PARAMETERS : c_func AS CHECKBOX.

SELECT-OPTIONS : s_func FOR tfdir-funcname.

SELECTION-SCREEN END OF BLOCK blk2.

SELECTION-SCREEN BEGIN OF BLOCK blk3 WITH FRAME TITLE text-120.

PARAMETERS : c_info AS CHECKBOX.

SELECTION-SCREEN END OF BLOCK blk3.

TYPE-POOLS: scan, slin, synt, sana, slis.

TYPES:

BEGIN OF synt_struc_xcross_level,

name TYPE string, "Name des Levels

level TYPE i, "Verweis auf übergeordnetes Level

type TYPE sychar01, "Art des Levels END OF synt_struc_xcross_level.

the underlined line is giving a error ,i checked sychar01 is a domain of a table syst

and it exists in 4.ob

can anybody help .reward points gauranteed.its urgent