RMAN-20001: target database not found in recovery catalog

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RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS
RMAN-00571: ===================================================
RMAN-03002: failure of list command at 11/13/2011 03:26:18

RMAN-06004: ORACLE error from recovery catalog database: RMAN-20001: target database not found in recovery catalog

  1. Connect to RMAN Catalog
$ rman catalog rman/rman@rmancat target rmanbkup/rmanbkup@orcl
Recovery Manager: Release 11.2.0.2.0 – Production on Sun Nov 13 03:25:49 2011
Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.
connected to target database: orcl (DBID=5858479612)
connected to recovery catalog database
  1. Unregister the database
RMAN>unregister database noprompt;
  1. Register Database to RMAN catalog
RMAN> register database;
database registered in recovery catalog
starting full resync of recovery catalog

full resync complete