Procedure failing after upgrade

All,

I just upgraded to the latest version from 7.2.x and now a procedure is failing.

Please tell me what I'm doing wrong!

Original Func:

SELECT generateinvoice('{123,124}');

CREATE FUNCTION "generateinvoice" (integer[]) RETURNS integer AS '

DECLARE id_array ALIAS for $1;
temppk INT4;
count_it INT;

BEGIN
count_it := 1;

SELECT INTO temppk nextval(''t_invoice_invoice_id_seq'');
INSERT INTO t_invoice (invoice_id, created_date, invoice_status_id, modified_date) VALUES (temppk, CURRENT_TIMESTAMP(2), ''1'', CURRENT_TIMESTAMP(2));

WHILE id_array[count_it] LOOP

UPDATE t_event SET invoice_id=temppk, event_status_id=''5'' WHERE event_id=id_array[count_it];

count_it := count_it + 1;
END LOOP;

-- TEST COUNT RETURN (count_it - 1);
RETURN temppk;
END;' LANGUAGE 'plpgsql';

My Latest Attempt:

SELECT generateinvoice('{123,124}');

CREATE FUNCTION "generateinvoice" (anyarray) RETURNS integer AS '

DECLARE
id_array ALIAS for $1;
temppk INT4;
count_it INT;

BEGIN
count_it := 1;
SELECT INTO temppk nextval(''t_invoice_invoice_id_seq'');
INSERT INTO t_invoice (invoice_id, created_date, invoice_status_id, modified_date) VALUES (temppk, CURRENT_TIMESTAMP(2), ''1'', CURRENT_TIMESTAMP(2));

WHILE id_array[count_it] LOOP
UPDATE t_project SET invoice_id=temppk, project_status_id=''5'' WHERE project_id=id_array[count_it];
count_it := count_it + 1;
END LOOP;

RETURN temppk;
END;
' LANGUAGE 'plpgsql';