NoClassDefFoundError running Automation for Jira

Question

Whenever an automation rule is triggered it fails with the following message:

Unexpected error executing rule:java.lang.NoClassDefFoundError: com/codebarrel/automation/api/thirdparty/AutomationRuleComponent

Bilal Mustafa_bcpp0a · Answer

Just a quick update, clearing the cache of the jira box helped! You want to remove the '.osgi-plugins' and the '.bundled-plugins' folders.

Bill Sheboy · Answer

Hi @Bilal Mustafa -- Welcome to the Atlassian Community!

It appears you are using Jira Server/Data Center, correct?  If so, you may want to work with your site admin to contact support for an error like that: https://support.atlassian.com/contact/#/

For Cloud, I have only seen posts for that error as an intermittent problem.  For Server, it may be a problem after an update to the addon app.

Kind regards,
Bill

Bilal Mustafa_bcpp0a · Answer

Hey Bill,

Having a very similar issue. Seems like the automation is failing for some unexpected reason. I've ran the same 'test' rules on another instance of Jira and they worked. Seems like Jira Automation Lite doesn't like the possible tech drift between the two and is therefore blocking me.