Makerbot Desktop 3.9.1.1143 error connecting to Replicator 2 on OSX 10.11.5

gistfile1.txt

2016-06-23 18:54:29,442 | INFO | MainThread:123145303375872 | __init__.py:1531 | conveyor.server.Server:usb_device_inserted | Device {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153} inserted
2016-06-23 18:54:29,466 | ERROR | MainThread:123145303375872 | EepromReader.py:47 | EepromReader:__init__ | Could not find /Library/MakerBot/python/makerbot_driver-0.1.1-py2.7.egg/makerbot_driver/EEPROM/eeprom_map_706_0x00.json
2016-06-23 18:54:29,536 | INFO | MainThread:123145303375872 | s3g.py:360 | conveyor.machine.s3g._S3gMachine:connect | Connecting {u'can_print': True, u'number_of_toolheads': 2, u'display_name': 'Replicator 2', u'name': {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153}, u'platform_temperature': 0, u'has_heated_platform': True, u'profile_name': u'Replicator2X', u'toolhead_target_temperature': [0], u'build_volume': [246, 152, 155], u'state': u'IDLE', u'driver_name': u's3g', u'printer_type': u'The Replicator 2X', u'firmware_version': [7, 6], u'toolhead_temperature': [22]}
2016-06-23 18:54:29,551 | INFO | MainThread:123145303375872 | listener.py:105 | conveyor.listener.PipeListener:_log_connection | Accepted '' listener
2016-06-23 18:54:29,556 | INFO | event_thread-1:123145312940032 | reflector_bot_detector.py:149 | conveyor.reflector_bot_detector.ReflectorBotManager:set_thingiverse_token | User signed in; searching for remote bots
2016-06-23 18:54:29,681 | INFO | Dummy-8:140735156101120 | __init__.py:1529 | conveyor.server.Server:usb_device_inserted | {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153} already inserted
2016-06-23 18:54:29,802 | WARNING | event_thread-1:123145312940032 | jsonrpc.py:399 | conveyor.jsonrpc.JsonRpc:_invokemethod | uncaught exception
Traceback (most recent call last):
  File "build/bdist.macosx-10.10-intel/egg/conveyor/jsonrpc.py", line 389, in _invokemethod
    result = func(*args, **kwargs)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/server/__init__.py", line 2451, in first_contact
    return self._server.first_contact(machine_name)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/server/__init__.py", line 628, in first_contact
    return machine.first_contact()
AttributeError: '_S3gMachine' object has no attribute 'first_contact'
2016-06-23 18:54:56,374 | INFO | Dummy-8:140735156101120 | __init__.py:1621 | conveyor.server.Server:usb_device_removed | Removed device {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153}.
2016-06-23 18:54:56,375 | INFO | work-thread-23C1:B017:75334323935351B0B0C1:123145347129344 | s3g.py:814 | conveyor.machine.s3g._S3gMachine:_work_thread_target | machine {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153} work thread ended
2016-06-23 18:54:56,481 | INFO | poll-thread-23C1:B017:75334323935351B0B0C1:123145342922752 | s3g.py:652 | conveyor.machine.s3g._S3gMachine:_poll_thread_target | machine {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153} poll thread ended
2016-06-23 18:54:59,398 | INFO | Dummy-8:140735156101120 | __init__.py:1531 | conveyor.server.Server:usb_device_inserted | Device {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153} inserted
2016-06-23 18:55:00,527 | ERROR | Dummy-8:140735156101120 | __init__.py:1569 | conveyor.server.Server:usb_device_inserted | Error connecting to machine {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153}
Traceback (most recent call last):
  File "build/bdist.macosx-10.10-intel/egg/conveyor/server/__init__.py", line 1565, in usb_device_inserted
    machine = self.connect(machine_name, reinsert)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/server/__init__.py", line 765, in connect
    machine.connect()
  File "build/bdist.macosx-10.10-intel/egg/conveyor/machine/s3g.py", line 344, in connect
    self._port, self._state_condition)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/machine/s3g.py", line 108, in _connect
    port.get_serial(), condition=condition)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/decorator.py", line 129, in decorator
    return func(*args, **kwargs)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/machine/port/usb.py", line 92, in get_serial
    s = serial.Serial(port_name, baudrate=115200, timeout=.2)
  File "/Users/jenkins/workspace/pyserial/platform_label/Mac64/repo/_build/pyserial_setuptools_sandbox/bdist-tmp/serial/serialutil.py", line 264, in __init__
    self.open()
  File "/Users/jenkins/workspace/pyserial/platform_label/Mac64/repo/_build/pyserial_setuptools_sandbox/bdist-tmp/serial/serialposix.py", line 359, in open
    raise SerialException("could not open port %s,%s: %s" % (self._port, self.portstr, msg))
SerialException: could not open port /dev/cu.usbmodem1411,/dev/cu.usbmodem1411: [Errno 16] Resource busy: '/dev/cu.usbmodem1411'
2016-06-23 18:55:00,532 | WARNING | event_thread-6:123145333972992 | jsonrpc.py:399 | conveyor.jsonrpc.JsonRpc:_invokemethod | uncaught exception
Traceback (most recent call last):
  File "build/bdist.macosx-10.10-intel/egg/conveyor/jsonrpc.py", line 389, in _invokemethod
    result = func(*args, **kwargs)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/server/__init__.py", line 2055, in connect_to_machine
    machine = self._server.connect(machine_name)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/server/__init__.py", line 755, in connect
    machine = self._find_machine(machine_name)
  File "build/bdist.macosx-10.10-intel/egg/conveyor/server/__init__.py", line 426, in _find_machine
    raise conveyor.error.UnknownMachineError(machine_hash)
UnknownMachineError: unknown machine: 23C1:B017:75334323935351B0B0C1
2016-06-23 19:08:05,812 | INFO | Dummy-8:140735156101120 | __init__.py:1623 | conveyor.server.Server:usb_device_removed | Nothing to remove for {u'iserial': '75334323935351B0B0C1', u'pid': 45079, u'port_type': 'UsbPort', u'vid': 9153}