title: Docker-machine : ca.pem not found
body: <p>Here i am creating a test machine(dev) using the docker machine.</p>
  
  <pre><code>$ docker-machine create -d virtualbox dev
  Creating CA: C:\Users\xxx\.docker\machine\certs\ca.pem
  Creating client certificate: C:\Users\xxx\.docker\machine\certs\cert.pem
  Creating VirtualBox VM...
  Creating SSH key...
  Starting VirtualBox VM...
  Starting VM...
  </code></pre>
  
  <p>The vm gets created and runs with out flaws. 
      And here is the error when i run the following command:</p>
  
  <pre><code>$ docker-machine env dev
  
  open C:\Users\xxx\.docker\machine\machines\dev\ca.pem: The system cannot fin
  d the file specified.
  </code></pre>
  
  <p>I have no idea how to deal with this problem. Tried restarting boot2docker.</p>