Symptoms

The following errors appear in the logs:

Exception encountered whilst trying to remove service 'Perforce Changes Indexing Service'

or

Error resolving service with name Perforce Changes Indexing Service

Cause

JIRA could not automatically remove the old Perforce plugin Changes Indexing Service from your configuration.

Resolution

Follow the Services documentation to remove it. The service's class name is com.atlassian.jira.plugin.ext.perforce.changelists.ChangesIndexService