title: Three.js - Uncaught TypeError: Cannot read property 'normal' of undefined
body: <p>I got the following error </p>
  
  <pre><code>Uncaught TypeError: Cannot read property 'normal' of undefined 
  </code></pre>
  
  <p>after running the following code on my webpage:</p>
  
  <pre><code>var text_geo = new THREE.TextGeometry("H", {size:20});
  var text_mat = new THREE.MeshBasicMaterial({color:"white", overdraw:true});
  var txt = new THREE.Mesh(text_geo, text_mat);
  </code></pre>
  
  <p>When I use the Chrome debugger, it traces the problem to the three.js source code file. Is there a way to get around this?<br/>
  Thanks</p>