Unable to install smartapp

[jamenlang]

I'm getting an error when I try to deploy the smartapp.

Trying through my.smartthings.com

ERROR: Something went wrong. Please try to install the SmartApp again.

Trying through graph api simulator

It says there's a problem on this line
presentDevice = addChildDevice("vzakharchenko", "WiFi Presence Sensor", deviceName, theHub? theHub.id: null, [label: "${deviceName}", name: "${deviceName}"])

physicalgraph.app.exception.UnknownDeviceTypeException: Device type 'WiFi Presence Sensor' in namespace 'vzakharchenko' not found. @line 78 (initialize)

I see all of my devices in the server app. Any idea what I missed?