FATA (root) Additional property name is not allowed

[ypadlyak]

getting:
FATA (root) Additional property name is not allowed

for the following compose file:
version: '3.8'

name: to
services:
m***:
build:
context: .
target: dev
volumes:
- .:/app
env_file:
- .env
environment:
- MIX_ENV=dev
# - SECRET_KEY_BASE=********
ports:
- "4000:4000"
links:
- db
depends_on:
- db
networks:
- back-tier

db:
image: postgres:13-bullseye
restart: always
environment:
POSTGRES_USER: postgres
POSTGRES_PASSWORD: postgres
ports:
- '5432:5432'
volumes:
- db-data:/var/lib/postgresql/data
networks:
- back-tier

volumes:
db-data: {}

networks:
front-tier: {}
back-tier: {} %

[mrangjunboon2017s]

thanks. from mrangjunboon2017

[cdrage]

Can you post the gist of the YAML file? Hard to diagnose with your current yaml @ypadlyak