Comment 3 for bug 1578800

I tried this patch on 2.0.0~beta5+bzr4998-0ubuntu1~xenial1
and although the GUI does now open the regiond.log still reports errors related to RegionAdvertisingService.

Traceback (most recent call last):
   File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 393, in callback
     self._startRunCallbacks(result)
   File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 501, in _startRunCallbacks
     self._runCallbacks()
   File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 588, in _runCallbacks
     current.result = callback(current.result, *args, **kw)
   File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 1274, in unwindGenerator
     return _inlineCallbacks(None, gen, Deferred())
 --- <exception caught here> ---
   File "/usr/lib/python3/dist-packages/twisted/internet/defer.py", line 1128, in _inlineCallbacks
     result = g.send(result)
   File "/usr/lib/python3/dist-packages/maasserver/service_monitor.py", line 101, in _updateDatabase
     processId = yield self.advertisingService.processId.get()
 builtins.AttributeError: 'RegionAdvertisingService' object has no attribute 'processId'