问为什么docker-compose依赖于工作目录？

EN

version: '3'
services:
  redis:
    image: "redis:alpine"
    container_name: redis

$ docker-compose  up --force-recreate -d
Creating redis ... done

$ docker-compose  up --force-recreate -d 
Recreating redis ... done

$ cp docker-compose.yml  red2/
$ cd red2/
$ docker-compose  up --force-recreate -d

Creating redis ... error

ERROR: for redis  Cannot create container for service redis: Conflict. The container name "/redis" is already in use by container "1ba060b545f716731ac1c5992b680e4d4b3639fc0ffeb291899c712f0839d23a". You have to remove (or rename) that container to be able to reuse that name.
ERROR: Encountered errors while bringing up the project.

$ docker network ls
NETWORK ID          NAME                       DRIVER              SCOPE
4a4af52e89cd        red2_default               bridge              local
57695428bd9d        redis_default              bridge              local