title: NameError with LESS CSS
body: <p>This is a my experience problem. </p>
  
  <p>Problem is I am using <code>LESS</code> CSS and when compile them into <code>CSS</code> it is compiling, but there are some "NameError" message/s. </p>
  
  <p>Just I used gradient color in my custom.less file, like this </p>
  
  <pre><code>&gt; .section {
      float: left;
      width : 64%;
      margin-right: 2%;
  
      &gt; .box {
          #gradient.vertical(#efefef; #ffffff; 5%; 70%);              
          max-height: 200px;
  
      }
  }
  </code></pre>
  
  <p>When compile it I can get like this error message, but my gradient is working - 
  <img src="https://i.stack.imgur.com/czu08.jpg" alt="enter image description here"></p>
  
  <p><strong>NOTE :</strong> I have saved my file with <code>UTF-8 without BOM</code> and I use a third party compiler named <code>winless</code> to compile my <code>LESS</code> files.</p>
  
  <p>Can anybody tell why is this happening? </p>