When users try to manually start a 2013 workflow on a list item, they experience the following error message:
They experience this error message when attempting to start any 2013 workflow. They do not experience this error message when starting 2010 workflows.
- Verify that all 2013 workflow services have been started.
- When I experienced this error message, I first checked if a simple 2013 workflow would run. When that also failed, I suspected that it was 2013 workflow infrastructure related. For this farm, all workflow services (aside from the usual client services) ran on a single application server. To begin troubleshooting, I first checked the status of all 2013 workflow services on the application server. I then discovered that the Service Bus Message Broker service was stopped. After starting this service again, and I reloaded the page, and I was able to start 2013 workflows again without issue. No need to re-publish the workflow.