Q:

Attempting to import blender json model into three.js, getting a 'length' error

I'm attempting to use a JSON 3D model from Blender, and having it to where it shifts slightly based on mouse/touch movement on the screen.   
I'm getting an error of "cannot read property "Length" of undefined, and I'm not finding good documentation of how to load models from Blender into three.js anywhere.
This is my code.
var loader = new THREE.JSONLoader();
loader.load( 'js/Neuron.json', );

https://pastebin.com/wD59mGBu
Any help or even someone pointing me to an online resource to demonstrate a result would be highly appreciated.  

A:

The issue was the Json file itself; it was exported without "scene" being chosen as the option. Doing that and setting the importer worked.

