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Support Article

Error initializing PRAppLoader



During a new installation of Pega 7.1.7, installation is reported as successful, however, the application is not up and running.

Error Messages

============ PegaRULES Bootstrap Configuration ============
Date: Mon Jun 01 13:19:42 PDT 2015
Java Version: Oracle Corporation 1.7.0_51
Configuration: {directory structure}/

(!) Unable to use given database configuration
(!) Unable to locate classes on filesystem
=============== End Bootstrap Configuration ===============

Listener refused the connection with the following error:

ORA-12514, TNS:listener does not currently know of service requested in connect descriptor

Steps to Reproduce

Perform a new installation of Pega 7.1.7.

Root Cause

The error, "ORA-12514, TNS:listener does not currently know of service requested in connect descriptor", refers to the content of the CONNECT_DATA string. Oracle is responding to the connection, but the SERVICE_NAME is not a valid service identifier.


Restart of the Oracle listener to resolve this issue. 

Published June 24, 2015 - Updated October 8, 2020

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