Docker-Compose can't connect to Docker Daemon

Question

I am getting an error message saying I can\'t connect to the docker daemon. I have looked into other people\'s answers who have had similar issues but it hasn\'t helped. I

Answer 1

Another reason why this error can show up: for me it was a malformed image-path definition in the docker-compose.yml:

  service:
    image: ${CONTAINER_REGISTRY_BASE}/my-service
   ...

Lookis ok'ish first, but i had CONTAINER_REGISTRY_BASE=eu.gcr.io/my-project/ set on the env. Apparently the // in the image path caused this error.

docker-compose: v.1.21.2
docker: 18.03.1-ce