title: install socket.io on ubuntu
body: <p>I'm working on a real time application and I'm using third party to do it.
  But now I have to use node.js with socket.io instead of third party .</p>
  
  <p>I installed the node.js (v0.4.12) correctly and I check it using command <code>node -v</code> .
  but when I was installed the socket.io using <code>npm install socket.io</code> command I got this error .  </p>
  
  <pre><code>npm ERR! install failed Error: Required package: options(latest) not found. (Found: ["0.0.3"])
  npm ERR! install failed (required by: ws@0.4.23)
  npm ERR! install failed     at /usr/share/npm/lib/build.js:192:19
  npm ERR! install failed     at cb (/usr/share/npm/lib/utils/graceful-fs.js:32:9)
  npm ERR! Error: Required package: options(latest) not found. (Found: ["0.0.3"])
  npm ERR! (required by: ws@0.4.23)
  npm ERR!     at /usr/share/npm/lib/build.js:192:19
  npm ERR!     at cb (/usr/share/npm/lib/utils/graceful-fs.js:32:9)
  npm ERR! Report this *entire* log at &lt;http://github.com/isaacs/npm/issues&gt;
  npm ERR! or email it to &lt;npm-@googlegroups.com&gt;
  npm ERR! Just tweeting a tiny part of the error will not be helpful.
  npm not ok
  </code></pre>
  
  <p>How I can solve it?</p>