RMAN-04005: error from target database+ORA-12154: TNS:could not resolve the connect identifier specified

Issue

$ rman target sys/indsystem@prod auxiliary sys/indsystem@TEST

Recovery Manager: Release 12.1.0.2.0 - Production on Tue Feb 5 22:30:25 2019

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RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00554: initialization of internal recovery manager package failed
RMAN-04005: error from target database:
ORA-12154: TNS:could not resolve the connect identifier specified

Unable to connect to the target database because of the password file is missing from the target database or clone instance.

Solution

orapwd file=orapwTEST password=Indsystem