[Syncthing] AttributeError: module 'syncthing.backend' has no attribute 'add_device'

[peakwinter]

arkOS 0.8.3 Crash Report

Running in prod
System: Linux arkos 4.9.13-3-ARCH #1 SMP Fri Mar 3 18:45:16 MST 2017 armv7l GNU/Linux

Platform: armv7l Raspberry Pi
Python version 3.6.0
Config path: settings.json

Loaded applicatons:
syncthing

Request: POST /api/apps/syncthing/devices

Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1982, in wsgi_app
response = self.full_dispatch_request()
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1614, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1517, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/usr/lib/python3.6/site-packages/flask/_compat.py", line 33, in reraise
raise value
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1612, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/lib/python3.6/site-packages/flask/app.py", line 1598, in dispatch_request
return self.view_functionsrule.endpoint
File "/usr/lib/python3.6/site-packages/kraken/auth.py", line 135, in decorator
return func(*args, **kwargs)
File "/usr/lib/python3.6/site-packages/kraken/frameworks/apps.py", line 87, in dispatcher
return fn(*params[1:])
File "/usr/lib/python3.6/site-packages/flask/views.py", line 84, in view
return self.dispatch_request(*args, **kwargs)
File "/usr/lib/python3.6/site-packages/flask/views.py", line 149, in dispatch_request
return meth(*args, **kwargs)
File "/var/lib/arkos/applications/syncthing/api.py", line 54, in post
device = backend.add_device(
AttributeError: module 'syncthing.backend' has no attribute 'add_device'