I am creating a swarm environment with two hosts added to it and could see the swarm and agents deployed in either of the machines. Created a project with a docker-compose file and after starting it, I got an error message stating "Error (exit status 1: Couldn’t connect to Docker daemon at http://docker:2375 - is it running? If it’s at a non-standard location, specify the URL with the DOCKER_HOST environment variable.) ". Let me know any configuration is missing.