Google Cloud Managed VM error

DockerDaemonConnectionError.txt

Traceback (most recent call last):
  File "/home/eyalev/Software/google-cloud-sdk/./lib/googlecloudsdk/gcloud/gcloud.py", line 153, in <module>
    main()
  File "/home/eyalev/Software/google-cloud-sdk/./lib/googlecloudsdk/gcloud/gcloud.py", line 149, in main
    _cli.Execute()
  File "/home/eyalev/Software/google-cloud-sdk/./lib/googlecloudsdk/calliope/cli.py", line 381, in Execute
    post_run_hooks=self.__post_run_hooks, kwargs=kwargs)
  File "/home/eyalev/Software/google-cloud-sdk/./lib/googlecloudsdk/calliope/frontend.py", line 274, in _Execute
    pre_run_hooks=pre_run_hooks, post_run_hooks=post_run_hooks)
  File "/home/eyalev/Software/google-cloud-sdk/./lib/googlecloudsdk/calliope/backend.py", line 887, in Run
    result = command_instance.Run(args)
  File "/home/eyalev/Software/google-cloud-sdk/lib/googlecloudsdk/appengine/app_commands/setup_managed_vms.py", line 37, in Run
    setup_registry.SetupRegistry()
  File "/home/eyalev/Software/google-cloud-sdk/./lib/googlecloudsdk/appengine/lib/images/setup_registry.py", line 32, in SetupRegistry
    timeout=config.DOCKER_D_REQUEST_TIMEOUT)
  File "/home/eyalev/Software/google-cloud-sdk/platform/google_appengine/google/appengine/tools/docker/containers.py", line 663, in NewDockerClient
    'Couldn\'t connect to the docker daemon using the specified '
google.appengine.tools.docker.containers.DockerDaemonConnectionError: Couldn't connect to the docker daemon using the specified environment variables. Please check the environment variables DOCKER_HOST, DOCKER_CERT_PATH and DOCKER_TLS_VERIFY are set correctly. If you are using boot2docker, make sure you have run "$(boot2docker shellinit)"