RSA Authentication Manager failed to apply upgrade due to "Failed to prepare the update" error occurring.

Advanced Status View shows the following error: 

INFO: Executing /opt/rsa/am/pgsql/bin/psql
Exception in thread "main" groovy.lang.MissingPropertyException: No such property: properyKeyDefaultCipherListValue for class: UpdateRollback

[...]

[ERROR] Error: Failed to invoke update engine: Failed to prepare the update.
java.lang.Exception: Failed to prepare the update.

[...]

Cause

The task is failing to complete due to a corrupted psql file.
An indicator of a corrupted psql file could be a file size of 0 bytes. View psql file information through the CLI:

rsaadmin@am85u-1:~> ls -lthr /opt/rsa/am/pgsql/bin/psql
-rwx------ 1 rsaadmin rsaadmin 763 Mar 23  2015 /opt/rsa/am/pgsql/bin/psql

Obtain a clean copy of the psql file from an existing replica, or contact RSA Technical Support to be provided with one.

• Using an SFTP client such as WinSCP or MobaXterm, access directory /opt/rsa/am/pgsql/bin/ on replica server
• Copy psql file

• Delete corrupted psql file
• Move new psql file into the directory /opt/rsa/am/pgsql/bin/
• Change file permissions: chmod 700 /opt/rsa/am/pgsql/bin/psql