Source type \CLASS=CL_BSP_WD_VALUE_NODE is not compatible, for the purposes of assignment, with target type \CLASS=CL_CRM_BOL_ENTITY

Hi

Source type \CLASS=CL_BSP_WD_VALUE_NODE is not compatible, for the purposes of assignment, with target type \CLASS=CL_CRM_BOL_ENTITY

I am getting above error

   data      lr_header      type ref to if_bol_bo_property_access.
  data:lr_entity_col  type ref to cl_crm_bol_entity.

   lr_header = me->typed_context->header->collection_wrapper->get_current( ).
  check lr_header is bound.

    lr_entity_col ?= lr_header.

Thanks

Suresh