SQL & PL/SQL :: How To Execute Function In Developer

I have converted one function from sql to oracle through sql developer. so it's created with package name. I execute package name and function also

here is my package name and function:

CREATE OR REPLACE PACKAGE FnFetchEmployees_pkg
AS
TYPE tt_v_employees_type IS TABLE OF tt_v_employees%ROWTYPE;
END;

create or replace
FUNCTION FnFetchEmployees
(
v_user_id IN NUMBER
)
RETURN FnFetchEmployees_pkg.tt_v_employees_type PIPELINED
AS
[code]........

it's executed successfully. when i am executing this function like this:

select emp_id from fnfetchemployees_pkg.fnfetchemployees(1) from dual;
getting error: sql command is not properly ended;