RMAN-06059: expected archived log not found, loss of archived log compromises recoverability

RMAN backup failed with the below error message and its require archive log files to complete the RMAN backup.

Error:

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup plus archivelog command at 01/24/2018 03:35:09
RMAN-06059: expected archived log not found, loss of archived log compromises recoverability
ORA-19625: error identifying file /u01/app/oracle/arch/1_282613_769193473.arc
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3

This issue will happen If in case archive logs was deleted or corrupted.

Fix:

RMAN> crosscheck archivelog all;

RMAN> delete expired archivelog all;

OR

If you are using catalog database to maintain RMAN repository instead of controlfile, you can try following command:

RMAN> resync catalog;

Run the backup again.