webwork.action.ActionSupport not found

[Administrator]

I have been following the tutuorial:

https://developer.atlassian.com/jiradev/jira-platform/guides/projects/tutorial-creating-a-jira-report

I am using IntelliJ and when I compile it gives me an error stating "class file for webwork.action.ActionSupport not found"

The code is:

action.addError(SELECTED_PROJECT_ID, action.getText("report.issuecreation.projectid.invalid"));

What am I missing or doing wrong?