title: Error Parsing /page.xhtml: Error Traced[line: 42] The entity "nbsp" was referenced, but not declared
body: <p>I'd like to use non breaking spaces in my JSF page. I know, in plain HTML I could use <code>&amp;nbsp;</code> for this and this works fine. However, when I put those <code>&amp;nbsp;</code> in a Facelets page, then it errors as follows:</p>
  
  <blockquote>
    <p>Error Parsing /page.xhtml: Error Traced[line: 42] The entity "nbsp" was referenced, but not declared.</p>
  </blockquote>
  
  <p>How is this caused and how can I solve it?</p>