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Error: relation "rules.pr_engineclasses" does not exist



During installation the Pega 7.1.9, user gets Exception 'ERROR: relation "rules.pr_engineclasses" does not exist.

Environment details:

OS - Windows Server 2012
DB - PostgreSQL 9.3
Apache Tomcat

Error Messages

[java] org.postgresql.util.PSQLException: ERROR: relation "rules.pr_engineclasses" does not exist
[java] Position: 97

Steps to Reproduce

Install Pega prerequisites, and start Installation process (IUA). Exception occurs.

Root Cause

Issue was with the path postgres was installed; it had spaces in the name and this causes the issue.


Install PostgresSQL into a directory with no spaces, which allowed pljava to be successfully deployed and this allowed the Pega install to correctly complete.

Published April 6, 2016 - Updated October 8, 2020

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