RMAN-06457: UNTIL SCN (****) is ahead of last SCN in archived logs (****)

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#  Error
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RMAN-06457: UNTIL SCN (3680420) is ahead of last SCN in archived logs (3680404)

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#  Full Error 
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RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 12/12/2012 08:09:45
RMAN-06457: UNTIL SCN (3680420) is ahead of last SCN in archived logs (3680404)


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#  Cause
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Error occured while trying to duplicate a database of 11.2.0.1.0 version.

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#  Command Executed
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duplicate database to dup11r2
until time "To_Date('12-DEC-2012 07:40:38','DD-MON-YYYY HH24:MI:SS')"
SPFILE
SET CONTROL_FILES='H:\app\Administrator\oradata\DUP11R2\control01.ctl'
set db_file_name_convert='H:\app\Administrator\oradata\ora11g','H:\app\Administrator\oradata\DUP11R2'
set log_file_name_convert='H:\app\Administrator\oradata\ora11g','H:\app\Administrator\oradata\DUP11R2'
backup location 'H:\app\Administrator\backup\ORA11G';


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## Solution
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### 11.2.0.1.0


Set Until time used is ahead of the next_time of the last backed up archivelog.

select sequence#,completion_time,next_time from v$archived_log order by 2

 SEQUENCE# COMPLETION_TIME      NEXT_TIME
---------- -------------------- --------------------
       176 12-DEC-2012 07:33:31 12-DEC-2012 07:33:27
       177 12-DEC-2012 07:40:29 12-DEC-2012 07:40:28

So the next_time of the last backed up sequence 177 is "12-DEC-2012 07:40:28". Duplication is successful with this timestamp.

duplicate database to dup11r2
until time "To_Date('12-DEC-2012 07:40:28','DD-MON-YYYY HH24:MI:SS')"
SPFILE
SET CONTROL_FILES='H:\app\Administrator\oradata\DUP11R2\control01.ctl'
set db_file_name_convert='H:\app\Administrator\oradata\ora11g','H:\app\Administrator\oradata\DUP11R2'
set log_file_name_convert='H:\app\Administrator\oradata\ora11g','H:\app\Administrator\oradata\DUP11R2'
backup location 'H:\app\Administrator\backup\ORA11G';