Error received type undefined - undefined
I have a Yale lock that my Smarthings app can see  (and operate) through the JSON Complete API but when I start Homebridge, I get the following so HomeKit isn't able to see my lock:

[11/16/2016, 8:26:56 PM] [SmartThings] Initializing homebridge-smartthings.SmartThings platform...
[11/16/2016, 8:26:56 PM] [SmartThings] Fetching Smart Things devices.
[11/16/2016, 8:26:56 PM] [SmartThings] Error received type undefined - undefined
[11/16/2016, 8:26:56 PM] [SmartThings] Unknown Capabilities: []

I'm stuck - anyone have something like this already? Here is my config.json snippet.
                "platform": "homebridge-smartthings.SmartThings",
		"name": "SmartThings",
	    "app_url": "https://graph-na02-useast1.api.smartthings.com:443/api/smartapps/installations/",
	    "app_id": "XXX-XXX-XXX",
	    "access_token": "XXX-XXX-XXX"",
	    "polling_seconds": 600,
	    "update_seconds": 1