ORACLE error from recovery catalog database

RMAN> create catalog;

error creating db
ORACLE error from recovery catalog database: ORA-01950: no privileges on tablespace 'USERS'

ORACLE error from recovery catalog database: ORA-00942: table or view does not exist

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-06433: error installing recovery catalog

RMAN> exit


FIX:

SQL> alter user rman
2 quota unlimited on users;

User altered.