Syntax error in context class

Hi Experts,

I have created a zclass ZL_BP_DATA_MARKETINGATTR5_CN00 keeping class CL_BP_DATA_MARKETINGATTR5_CN00 as super. Now when I am tryng to activate it, I am getting an syntax error "Type LCL_VALUEHELP_FOR_ATTR_SET is unknown". When I double click on it, it takes me to standard class CL_BP_DATA_MARKETINGATTR5_CN00.

I have copied the private variables and all but still I am getting it.

I have enhanced BP Data Marketting Attribute Search view in bsp component BSP_WD_CMPWD.

Except the context class all other classes are getting converted into Z class. I want to redefine the get_v_attr_desc attribute method of the context class, can anybody tell me how to get the zclass instead of the standard context class in the basp component.

Regards,

Sangeeta.