N8n crashes due to an error in the workflow

Describe the issue/error/question

In an existing, webhook based, activated workflow, i added a Stop and Error node. I then saved the workflow without putting in a value for the parameter Error Message in the Stop and Error node.
Then, as soon as i called the workflow, the n8n container crashed.

What is the error message (if any)?

After restarting, this was in the log:

023-04-01T13:15:04.393407268Z Error: The workflow has issues and can for that reason not be executed. Please fix them first.
2023-04-01T13:15:05.077187878Z ResponseError: The workflow has issues and can for that reason not be executed. Please fix them first.
2023-04-01T13:15:05.077224532Z     at Object.executeWebhook (/usr/local/lib/node_modules/n8n/src/WebhookHelpers.ts:682:9)
2023-04-01T13:15:05.077229578Z     at processTicksAndRejections (node:internal/process/task_queues:96:5)
2023-04-01T13:15:15.323823800Z Last session crashed
2023-04-01T13:15:25.735715806Z Initializing n8n process

Please share the workflow

Simplified, relevant part of my workflow (that’s also able to reproduce the issue):

Expected Behaviour:

  1. The already activated workflow should have either given an error when saved, or should have become inactivated. Right?
  2. Even if the workflow had a fault, the container shouldn’t have crashed.

Information on your n8n setup

  • n8n version: 0.219.1, 0.221.2
  • Database you’re using (default: SQLite): Postgres
  • Running n8n with the execution process [own(default), main]: main
  • Running n8n via [Docker, npm, n8n.cloud, desktop app]: Docker

Hi @shrey-42, sorry for the trouble this causes and thank you so much for reporting this.

I was able to reproduce this crash when running n8n with EXECUTIONS_PROCESS=main. I’ve added this to our backlog and we’ll confirm once this has been fixed.

Hey @MutedJam, this issue is still persisting, in v0.223.0.

Hi @shrey-42, I know and I am very sorry for this. So far, the ticket has not been picked up. We’ll update this thread once the problem is fixed.

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