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datapatch fail with " Error reading descriptor from registry: Not a SCALAR reference at ... " (Doc ID 2639898.1)

Last updated on AUGUST 25, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

On : 12.2.0.1 version,

datapatch failed with error below :

Error: prereq checks failed!
  patch 27105253: Error reading descriptor from registry: Not a SCALAR reference at <ORACLE_HOME>/sqlpatch/lib/XML/Simple.pm line 433, line 21.

Prereq check failed, exiting without installing any patches.



Cause

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