title: xcode9 / SceneKit - .dae file not loading into SCNScene - returns nil
body: <p>I'm trying to load a .dae file into SCNScene, using the following code:</p>
  
  <pre><code>let solutionScene = SCNScene(named: "art.scnassets/level1.dae")
  print(solutionScene?.rootNode) // prints nil
  
  solutionNode = solutionScene?.rootNode.childNode(withName: "level1", recursively: true)
  </code></pre>
  
  <p>I exported the .dae file from Blender as COLLADA with default settings, contains just a one simple object.</p>
  
  <p>When i click on the .dae file in my art.scnassets folder in XCode, it opens without problem and i can see the geometry, camera etc.</p>
  
  <p>I just can't get it loaded in the SCNScene. Is there anything i missed either on Blender side or Xcode/Swift side?</p>