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Home > Success Center > Network Performance Monitor (NPM) > Exception while configuring plugin Orion Core Services component Message Bus. System.NullReferenceException: Object reference not set to an instance of an object

Exception while configuring plugin Orion Core Services component Message Bus. System.NullReferenceException: Object reference not set to an instance of an object

Updated April 5, 2017

Overview

The following error is displayed during Configuration Wizard:

Exception while configuring plugin Orion Core Services component Message Bus. System.NullReferenceException: Object reference not set to an instance of an object.

Environment

NPM 12.1

Cause 

The following error in the Configuration Wizard log indicates that the process is attempting to delete a user account:

2017-04-03 16:48:25,309 [16] DEBUG ProcessRunner - { ProcessRunner.Run("E:\Solarwinds\Orion\RabbitMQ\sbin\rabbitmqctl.bat", "delete_user orion") entered
2017-04-03 16:48:25,309 [16] DEBUG ProcessRunner - ProcessRunner.Run() Started process PID 3512
2017-04-03 16:48:34,678 [16] DEBUG ProcessRunner - ProcessRunner.Run() Process does not block calling thread anymore.
2017-04-03 16:48:34,678 [16] INFO ProcessRunner - stdout:

Resolution

  1. On the Orion server open database manager and click add default server
  2. Double click the table's called Credential and CredtialProperty and click execute query
  3.  Locate Orion in the value column of  the "CredentialProperty" table and see what CredentialID it is and check in the "Credential" table and see if it corresponds to CredentialOwner "RabbtMQ"
  4. Delete the account in question from the "credentialproperty" table and the "credential" table more than likely the RabbitMQ account
  5. Rerun Configuration Wizard.

 

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