Debugging a stored procedure with cursor in Sqlplus

Stored procedure stored procedure create or replace package pkg_test as
Type t_cursor is REF CURSOR;
Procedure Sp_get_catalogs (P_userid in number, cur_catalogs out t_cursor);
End Create or replace package body pkg_test as
Procedure Sp_get_catalogs (P_userid in number, cur_catalogs out t_cursor) is
V_sql VARCHAR2 (500);
Begin
If P_userid = 0 Then
Open Cur_catalogs for
Select UserID, loginID, name from Tuser;
Else
V_sql: = ' Select Userid,loginid,name from Tuser where Userid=:w_userid ';
Open Cur_catalogs for V_sql
Using P_userid;
End If;
exception
When others then
Dbms_output.put_line (' other exception ');
End Sp_get_catalogs;
End Pkg_test; Sqlplus Debug code variable v_cur refcursor;
Variable V_userid number;
Set Autoprint off;
Begin
: V_userid: =-9222229;
End
/
Execute pkg_test.sp_get_catalogs (: V_userid,: V_cur);
Print V_cur summary pl/sql Developer in command Window input (sqlplus debug code) debug stored procedure appears "Refcursor don ' t supported!" Error, change to sqlplus inside debugging all normal. Reference documentation Sql*plus User ' s Guide and Reference release 9.2