What could be the reason and how to fix it?

Question

Docker

docker-compose up -d
WARNING: The port_service_nginx variable is not set. defaulting to a blank string.
WARNING: The port_service_db variable is not set. defaulting to a blank string.
WARNING: The pg_db_password variable is not set. defaulting to a blank string.
WARNING: The pg_db_user variable is not set. defaulting to a blank string.
WARNING: The pg_db_name variable is not set. defaulting to a blank string.
ERROR: The Compose file './docker-compose.yaml' is invalid because:
services.postgres.ports is invalid: Port ranges don't match in length
services.nginx.ports is invalid: Port ranges don't match in length

Answer 1

There is no .env file with the definition of the mentioned variables