title: using primefaces extensions (inputNumber)
body: <p>i'm new in <code>primefaces</code> word , and i need to use <code>primefaces</code> extensions (<code>inputNumber</code>)</p>
  
  <p>in the XHTML file I add the taglib :</p>
  
  <pre><code>xmlns:pe="http://primefaces.org/ui/extensions"
  </code></pre>
  
  <p>when adding the jar :</p>
  
  <pre><code>primefaces-extensions-0.6.3;
  </code></pre>
  
  <p>I have an error : <code>La ressource demandée n'est pas disponible.</code></p>
  
  <p>When removing it, the application works but the <code>inputNember</code> doesn't show and I get this
  error:</p>
  
  <pre><code>Warning: This page calls for XML namespace http://primefaces.org/ui/extensions declared with prefix pe but no taglibrary exists for that namespace.
  </code></pre>