Exception in multi-container config parsing: Exception: System.FormatException, Msg: Input string was not in a correct format.

Question

Hi I have an app service for containers, but I'm getting
Exception in multi-container config parsing: Exception: System.FormatException, Msg: Input string was not in a correct format.

this is my yml:

version: "3.8"

services:
  chat-api:
    #build: . only locally supported
    ports:
      - "80-82:80"
    depends_on:
      - redis
    environment:
      CHAT_GATEWAY_REDIS_URL: redis://localhost:6379
      CHAT_GATEWAY_PORT: "80"
    deploy:
      replicas: 3

  redis:
    image: redis
    container_name: redis
    ports:
      - "6379:6379"
    deploy:
      replicas: 1