Dockerエラー： this error may indicate that the docker daemon is not running

error during connect: this error may indicate that the docker daemon is not running: Get "http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.24/containers/json?all=1&filters=%7B%22label%22%3A%7B%22com.docker.compose.config-hash%22%3Atrue%2C%22com.docker.compose.project%3Ddocker-redmine%22%3Atrue%7D%7D": open //./pipe/docker_engine: The system cannot find the file specified.

対応

docker engineを起動しましょう。