The new instructions for installing n8n on ubuntu with Docker Compose .yml file is incorrect. it contains 2 spaces before “volumes:
traefik_data:
external: true
n8n_data:
external: true”
This causes an additional property error with docker-compose.
Also it would help for newer users to include:
sudo usermod -aG docker $USER
newgrp docker
before the step “docker volume create n8n_data
docker volume create traefik_data”