Trello Trigger: VALIDATOR_URL_RETURNED_ERROR

[Paulo_Machado]

Hello! I would like know if you can help me with the following error:
Trello Trigger: VALIDATOR_URL_RETURNED_ERROR.
It happened always when I try activate the node Trello Trigger.

Information on your n8n setup

• n8n version: 0.215.1
• Database you’re using (default: SQLite): I don’t know what is it
• Running n8n with the execution process [own(default), main]:
• Running n8n via [Docker, npm, n8n.cloud, desktop app]: with server… I think is Docker

[Jon]

Hey @Paulo_Machado,

Can you check that the webhook url is not localhost, I suspect that is the issue.

You can change this by setting the WEBHOOK_URL environment variable to whatever domain you are using.

[Paulo_Machado]

Thanks! I Will do It and then come back to talk If I got It. But, today my n8n is hosted on a server. Can you explain me a little more How do I do this check?

[Jon]

Above the credential that you select it will say webhook urls, if you click that it will show you what you are using.

[Paulo_Machado]

Hello, Jon

At the moment the Webhook_URL is:
https://workflows.comadremaria.com.br/webhook-test/e51fcd5e-8b3d-41d8-be09-f0fc1b5e05c6/webhook

I’ve done test WEBHOOK_URL PRODUCTION but the error continues

The most string is when I’ve done test a node WEBHOOK, it’s works! But if I use the Trello Trigger the error happens.