Warning message 'Field ... has no defined value' in Smartform

Hi,

I have a Smartform issue.

I defined a simple structure in TYPES.

TYPES: BEGIN OF TY_ZDIP,

             VTEXT TYPE KOMVD-VTEXT,

             KWERT TYPE KOMVD-KWERT,

             END OF TY_ZDIP.

In global data I refer to this type structure.

The smartform works correctly but while compiling I get a warning message 'Field ZDIP-VTEXT has no defined value'.

I tried with default value but it didn't help.

Any suggestions?

Thanks in advance.

Kind regards,

Amel Alic