Hi, all!
After an attempt is made to upgrade a v4.2 version of a JIRA database to v5.2.7, the following error appears in the log:
2013-10-01 21:09:39,708 main ERROR [atlassian.jira.upgrade.UpgradeManagerImpl] Errors occurred during upgrade:
2013-10-01 21:09:39,708 main ERROR [atlassian.jira.upgrade.UpgradeManagerImpl] Upgrade Error: JIRA is unable to migrate the User Directory configuration because external users exist but the osuser.xml file is not available.<br/>Please see <a href="https://docs.atlassian.com/jira/docs-052/JIRA+4.3+Upgrade+Guide#JIRA43UpgradeGuide-usermanagementinjira">JIRA 4.3 User Management Changes</a> for details.
File osuser.xml is located in atlassian-jira/WEB-INF/classes. Any ideas? Thanks