title: Docker command returns "invalid reference format"
body: <p>I'am using docker and using the following command:</p>
  
  <pre><code>docker run -d -p 9090:80 -v $(pwd):/usr/share/nginx/html nginx:alpine
  </code></pre>
  
  <p>to point to my <code>/dist</code> folder where my app-files are compiled by angular.</p>
  
  <p>I first go to <code>/dist</code> folder and then run the command from there. This was working fine and I was able to reach the app via port: <code>9090</code>, but after docker update, I run in error: </p>
  
  <blockquote>
    <p>docker: invalid reference format.
    See 'docker run --help'.</p>
  </blockquote>
  
  <p>I have been searching and checked the following posting <a href="https://stackoverflow.com/questions/45682010/docker-invalid-reference-format">docker : invalid reference format</a>, but it seems to be different to my issue.
  Here is the info based on the command: <strong><code>docker version</code></strong>:</p>
  
  <pre><code>Client:
   Version:      17.09.0-ce
   API version:  1.32
   Go version:   go1.8.3
   Git commit:   afdb6d4
   Built:        Tue Sep 26 22:40:09 2017
   OS/Arch:      darwin/amd64
  
  Server:
   Version:      17.09.0-ce
   API version:  1.32 (minimum version 1.12)
   Go version:   go1.8.3
   Git commit:   afdb6d4
   Built:        Tue Sep 26 22:45:38 2017
   OS/Arch:      linux/amd64
   Experimental: false
  </code></pre>
  
  <p>Any idea please?</p>