title: Protractor - error when starting on Ubuntu 14.04
body: <p>I'm trying to set up Protractor on Ubuntu 14.04 LTS and I'm getting the following error on this command:</p>
  
  <pre><code>&gt; sudo webdriver-manager start
  </code></pre>
  
  <p>The error is:</p>
  
  <pre><code>seleniumProcess.pid: 52352
  
  events.js:72
      throw er; // Unhandled 'error' event
            ^
  Error: spawn ENOENT
  at errnoException (child_process.js:1001:11)
  at Process.ChildProcess._handle.onexit (child_process.js:792:34)
  </code></pre>
  
  <p>Results of <code>webdriver-manager status</code>:</p>
  
  <pre><code>selenium standalone is up to date
  chromedriver is up to date
  IEDriver is not present
  </code></pre>
  
  <p>JDK looks to be installed already (<code>java --version</code>):</p>
  
  <pre><code>The program 'java' can be found in the following packages:
   * default-jre
   * gcj-4.8-jre-headless
   * openjdk-7-jre-headless
   * gcj-4.6-jre-headless
   * openjdk-6-jre-headless
  Try: sudo apt-get install &lt;selected package&gt;
  </code></pre>
  
  <p>Any ideas?</p>