SQL & PL/SQL

I am writing an oracle package using Oracle sql developer, I got this compile error:

Error(7,1): PLS-00103: Encountered the symbol "CREATE" .

create or replace
PACKAGE TestPackage AS
FUNCTION beforePopulate RETURN BOOLEAN;
FUNCTION afterPopulate RETURN BOOLEAN;
END TestPackage;

CREATE OR REPLACE PACKAGE BODY TestPackage AS
FUNCTION beforePopulate RETURN BOOLEAN AS
BEGIN
DELETE FROM TEST_1;
INSERT INTO TEST_1
SELECT * FROM TEST WHERE VALUE=300;
COMMIT;
RETURN TRUE;
EXCEPTION
WHEN OTHERS THEN
RETURN FALSE;
END;
FUNCTION afterPopulate RETURN BOOLEAN AS
BEGIN
UPDATE TEST SET RESULT="completed" WHERE VALUE=300;
COMMIT;
RETURN TRUE;
EXCEPTION
WHEN OTHERS RETURN FALSE;
END;
END;
END TestPackage;

If I add a / at line 6, the error became:

Error(6,1): PLS-00103: Encountered the symbol "/"

I tired an empty implementation like this:

create or replace
package package1 as
END PACKAGE1;

CREATE OR REPLACE
package body package1 as
end package1;

I got the same err. can anybody please help me out? Thank you.