PLS-00103: Encountered the symbol "/" - sql

Question

The error I am receiving depends on whether I remove the "/" or leave it.
With /:
PLS-00103: Encountered the symbol /
Without /:
PLS-00103: Encountered the symbol CREATE
What am I doing wrong?
CREATE OR REPLACE PACKAGE EMP_PACKAGE AS
TYPE EMP_TYPE IS RECORD
( /* Employee Type */
employee_id NUMBER(6,0),
first_name VARCHAR2(20),
last_name VARCHAR2(25),
email VARCHAR2(25),
phone_number VARCHAR2(20),
hire_date DATE,
job_id VARCHAR2(10),
salary NUMBER(6,2),
commission_pct NUMBER(2,2),
manager_id NUMBER(6,0),
department_id NUMBER(4,0)
);
PROCEDURE add_emp(employee_id NUMBER);
PROCEDURE edit_first_name(employee_id NUMBER, first_name employees.first_name%TYPE);
FUNCTION get_emp(employee_id NUMBER) RETURN employee_id;
END;
/
CREATE OR REPLACE PACKAGE BODY EMP_PACKAGE AS
-- procedure will edit an employee's first name
PROCEDURE edit_first_name(employee_id NUMBER) IS
BEGIN
INSERT INTO employees (employees.first_name)
VALUES (first_name);
END edit_first_name;
END;
/

Answer 1

In the package specification you have the line:
FUNCTION get_emp(employee_id NUMBER) RETURN employee_id;
employee_id is not a valid data type.
Once you change that to a valid type then you get to the errors in the package body:
You are missing the ADD_EMP procedure and GET_EMP function.
PROCEDURE edit_first_name(employee_id NUMBER) does not match the declaration in the package specification as its missing the first_name employees.first_name%TYPE argument.
In INSERT INTO employees (employees.first_name) VALUES (first_name); the column is first_name not employees.first_name.

Answer 2

you have some errors in your code.
maybe you need something this?
i compile this in sql developer without any errors
create or replace PACKAGE EMP_PACKAGE AS
TYPE EMP_TYPE IS RECORD
( /* Employee Type */
employee_id NUMBER(6,0),
first_name VARCHAR2(20),
last_name VARCHAR2(25),
email VARCHAR2(25),
phone_number VARCHAR2(20),
hire_date DATE,
job_id VARCHAR2(10),
salary NUMBER(6,2),
commission_pct NUMBER(2,2),
manager_id NUMBER(6,0),
department_id NUMBER(4,0)
);
PROCEDURE add_emp(p_employee_id NUMBER);
PROCEDURE edit_first_name(p_employee_id NUMBER, p_first_name employees.first_name%TYPE);
FUNCTION get_emp(p_employee_id NUMBER) RETURN EMP_TYPE;
END;
/
create or replace PACKAGE BODY EMP_PACKAGE AS
-- procedure will edit an employee's first name
PROCEDURE edit_first_name(p_employee_id NUMBER, p_first_name employees.first_name%TYPE) IS
BEGIN
update employees emp
set emp.first_name = p_first_name
where emp.employee_id = p_employee_id;
END edit_first_name;
PROCEDURE add_emp(p_employee_id NUMBER) IS BEGIN
null;
END;
FUNCTION get_emp(p_employee_id NUMBER) RETURN EMP_TYPE IS
BEGIN
return null;
END;
END;