While executing the following pl/sql block Iam getting following error

Question

While executing the following pl/sql block
Iam getting following error
ORA-06550: line 5, column 11:
PLS-00320: the declaration of the type of this expression is incomplete or malformed
ORA-06550: line 5, column 11:
PL/SQL: Item ignored
declare
TYPE t_customer_details IS REF CURSOR;
o_customer_details t_customer_details;
v_rec o_customer_details%ROWTYPE;
begin
o_customer_details:=pkg_search.fngetcustdetails( 2727,1000841, NULL,NULL,119105329);
LOOP
FETCH o_customer_details INTO rec ;
EXIT WHEN o_customer_details%NOTFOUND;
DBMS_OUTPUT.PUT_LINE(' print' );
END LOOP;
CLOSE o_customer_details;
end;

Answer 1

sorry
declare
TYPE t_customer_details IS REF CURSOR;
o_customer_details t_customer_details;
begin
o_customer_details:= pkg_search.fngetcustdetails( 2727,1000841, NULL,NULL,119105329);
FOR v_rec IN o_customer_details
LOOP
  DBMS_OUTPUT.PUT_LINE(' print' );
END LOOP;
END;I changed code,
Can you say , o_customer_details:= pkg_search.fngetcustdetails( 2727,1000841, NULL,NULL,119105329); is it right?
pkg_search.fngetcustdetails return ref cursor??