I'm using this page as a guide to auto increment a number in a listL https://habaneroconsulting.com/insights/Nintex-Workflows-makes-it-easy-to-create-an-auto-incrementing-column-in-SharePoint#.VgizB7Rd7BJ
I've followed the whole thing, but I can't publish the workflow as I get this error:
Correlation ID: 62f048e2-27e9-4c28-a27a-0640a167db12
Time (UTC): 2015-09-28 03:27:54
The next number is stored in a number type column so I don't know why it's complaining about it.
My "Do Calculation" looks exactly the same idea.
I'm not sure what else to do.