Jira server throws WorkflowException when transitioning issues
Workflow transition fails with this message in the
http-8080-1 ERROR username 740x536x1 b9x4u0 192.168.1.2 /secure/CommentAssignIssue.jspa [atlassian.jira.workflow.OSWorkflowManager] Caught exception while attempting to perform action 171 from workflow 26206 on issue 'TST-1234' com.opensymphony.workflow.WorkflowException: Could not load validator class
For troubleshooting it you can check the logs and export the workflow as XML.
Workflow has an action as a validator that refers a specific class, and this class comes from a third party plugin. It can happen with different plugins use validator class.
There are three ways to fix it:
- Suggestion 1:
- Install the latest compatible version of this plugin.
- Suggestion 2:
- Remove the validator that refers to this plugin from your workflow.
- Suggestion 3:
- Check in the workflow what step is using this post-function as a validator class. You may can remove if it's unnecessary validator.