Requirements to create stored procedures, part II

Hi everybody.
To permit me to create stored procedure I've missed do let run the catproc.sql script as sys user. So I've done it, but during the script it occours four errors:

1--

create package body sys.diana is
*

ERROR at line 1:
ORA-04031: unable to allocate 12496 bytes of shared memory ("unknown object","PL/SQL MPCODE","BAMIMA: Bam Buffer")

2--

create or replace package body sys.diutil is
*

ERROR at line 1:
ORA-04031: unable to allocate 34416 bytes of shared memory ("unknown object","PL/SQL MPCODE","BAMIMA: Bam Buffer")

3--

CREATE OR REPLACE PACKAGE BODY dbms_irefresh COMPRESS
*

ERROR at line 1:

ORA-00604: error occurred at recursive SQL level 1
ORA-01562: failed to extend rollback segment (id = 2)
ORA-01650: unable to extend rollback segment R02 by 32 in tablespace RBS

4--

insert into sys.duc$ (owner, pack, proc, operation, seq, com)
*

ERROR at line 1:
ORA-00001: unique constraint (SYS.I_DUC) violated

---

Are they important errors? What I have to do to solve it?
After this script I've tryed to create my first procedure:

SQL> <at>/users/oracle7/doc/04_StoredProc/t02_stored

Warning: Procedure created with compilation errors.

SQL>

Is this an error due to the previous one or probably an internal
error in the procedure definition?
Hope to read some good news... thank you!
Stefano
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