title: Docker doesn't install correct on Mac
body: <p>I have a pretty fresh Macbook Pro. Just downloaded the Docker installer and ran it. Then I opened the quickstart app, which had some errors.</p>
  
  <p>I'd show you what it said but it doesn't make the same errors the second time around. Here's what it shows the second time I open the quickstart app:</p>
  
  <pre><code>Machine default already exists in VirtualBox.
  Starting machine default...
  exit status 1
  Started machines may have new IP addresses. You may need to re-run the `docker-machine env` command.
  Setting environment variables for machine default...
  
  
  
                          ##         .
                    ## ## ##        ==
                 ## ## ## ## ##    ===
             /"""""""""""""""""\___/ ===
        ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ /  ===- ~~~
             \______ o           __/
               \    \         __/
                \____\_______/
  
  
  host is not running
  docker is configured to use the default machine with IP 
  For help getting started, check out the docs at https://docs.docker.com
  
  default is not running. Please start this with docker-machine start default
  bash-3.2$ docker-machine env
  Error: Expected either one machine name, or -u flag to unset the variables in the arguments.
  </code></pre>
  
  <p>And here's what happens when I try to run docker:</p>
  
  <pre><code>docker run hello-world
  Post http:///var/run/docker.sock/v1.20/containers/create: dial unix /var/run/docker.sock: no such file or directory.
  * Are you trying to connect to a TLS-enabled daemon without TLS?
  * Is your docker daemon up and running?
  </code></pre>
  
  <p>I thought Docker was supposed to be really great (everyone seems to love it), but this is really confusing sice I followed all the instructions.</p>
  
  <p>EDIT: I am using Mac OS 10.10.3 and VirtualBox 5.0.3</p>