ORA-12578: TNS Wallet Open Failed

How to Resolve ORA-12578: TNS: Wallet Open Failed

$ sqlplus /@ORCL1 as sysdba

SQL*Plus: Release 12.2.0.1.0 Production on Sat Jun 24 17:51:12 2017

ERROR:
ORA-12578: TNS:wallet open failed

Easiest way to resolve the issue by changing WALLET_OVERRIDE = TRUE to FALSE in SQLNET.ORA

edit your sqlnet.ora file and modify SQLNET.WALLET_OVERRIDE parameter value from TRUE to FALSE.
Change this:

SQLNET.WALLET_OVERRIDE = TRUE

to this:

SQLNET.WALLET_OVERRIDE = FALSE

Try Again.

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