Error decrypting credentials

Questions
1

Describe the problem/error/question

I’m using a self hosted n8n with official docker image n8nio/n8n:1.102.0, and using postgres:16 as database with docker compose. We have three environments: local, dev and prod and our intention is to promote based on some scripts we’ve created.

Our process -comments are welcomed- is local development → local export credentials & workflows → dev import for credentials & workflows → prod import for credentials & workflows. But aparently, a cred was previously created and I can’t export them. I end up seeing this error message

Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.

I’ve already deleted credentials from the UI, but is isn’t enough. I may share the script if it is useful for you guys.

What is the error message (if any)?

Credentials could not be decrypted. The likely reason is that a different “encryptionKey” was used to encrypt the data.

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)

Share the output returned by the last node

Information on your n8n setup

  • n8n version: 1.102.0
  • Database (default: SQLite): postgress
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app): docker
  • Operating system: it’s running on docker containers
2

Please see this document:

Basically each environment has a key that it uses to encrypt/decrypt credentials. If the key is not specified, it generates one for you at the start. In order to re-use credentials in the different environment, the key must be the same.

3

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