Error in Assistance class.

Hi experts,

I am getting an error in assistance class, below is the error :

" Web Dynpro Comp. / Intf. ZWD_TEST,Web Dynpro View V_TEST

Attribute WD_ASSIST

The type "ZASSIST_DISP" is unknown, but there is a type with the

similar name "IG_ZWD_TEST" . . . . . "

where :

ZASSIST_DISP is the assistance class,

ZWD_TEST is the component,

V_TEST is the view.

But when i activate it anyway , it works fine.

Help me in this error.

Thanks

Aisurya