title: Getting error "No driver found to handle VCS repository" on Composer and SVN
body: <p>I'm new with Composer, I've already followed <a href="https://getcomposer.org/doc/05-repositories.md#subversion-options" rel="noreferrer">https://getcomposer.org/doc/05-repositories.md#subversion-options</a> structure to create example using Composer.</p>
  
  <p>Howerver, I'm getting following error message with Composer and SVN when using command composer install:</p>
  
  <blockquote>
    <p>[InvalidArgumentException]<br>
    No driver found to handle VCS repository <a href="http://myexamplesvn/MyCommon-1.0/" rel="noreferrer">http://myexamplesvn/MyCommon-1.0/</a>.....</p>
  </blockquote>
  
  <p>Here is my setting:</p>
  
  <pre><code>"repositories": [
      {
          "type": "vcs",
          "url": "http://myexamplesvn/MyCommon-1.0/"
      }
  ],
  "require": {
      "my-common/my-common":"*"
  }
  </code></pre>
  
  <p>Could you provide me any idea or suggestion?</p>