[Workflow issue] Receiving this error since upgrading to Version 7.3.6 Jira.

[Joe Harte]

Has anyone any fix for the below please this has cropped up ever since we completed the upgrade to v7.3.6 in production and it's casuing isuses. This issue is happening for everyone on Jira not just me.

This error comes up when anyone tclicks the "Start Progress" and /or the "Withdraw" buttons in an issue.

Technical details
Log's referral number: 462f5cd1-e90c-4a2e-9c5d-d9e3c7e9618f

Cause
Referer URL: http://svwcd-jiraap01:8080/browse/BAU000-854

java.lang.NoSuchMethodError: com.atlassian.jira.issue.MutableIssue.setAssignee(Lcom/atlassian/crowd/embedded/api/User;)V
java.lang.NoSuchMethodError: com.atlassian.jira.issue.MutableIssue.setAssignee(Lcom/atlassian/crowd/embedded/api/User;)V
at com.googlecode.jsu.util.WorkflowUtils.setFieldValue(WorkflowUtils.java:669) [?:?]
at com.googlecode.jsu.util.WorkflowUtils.setFieldValue(WorkflowUtils.java:958) 

[Nic Brough -Adaptavist- · Accepted solution]

Check that you are on the latest version of the Suite Utilities for JIRA.

Then go to the workflow and try reconfiguring the post-functions you've used from it on the failing transitions.

[Joe Harte]

Thanks for the reply Nic, i'll check this out now, appreciate the help

[Joe Harte]

Nic you're a Legend thank you it was the Suite Utilities for JIRA, I had 1.4 I needed 1.5 for Jira 7 - 7.3.6

Appreciate that help!

[Nic Brough -Adaptavist-]

Glad to help! 

"Manage add-ons" and then looking for the upgrades flag is always something worth doing when you have a problem with an Atlassian application.  Something I wish the docs yelled about a lot instead of quietly mentioning it here and there.