---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<timed eval> in <module>

~/proj/rec_to_nwb/rec_to_nwb/processing/builder/nwb_file_builder.py in build(self)
    296         self.data_acq_device_originator.make(nwb_content)
    297 
--> 298         self.header_device_originator.make(nwb_content)
    299 
    300         self.camera_device_originator.make(nwb_content)

~/proj/rec_to_nwb/rec_to_nwb/processing/builder/originators/header_device_originator.py in make(self, nwb_content)
     29         fl_header_device = self.fl_header_device_manager.get_fl_header_device()
     30         logger.info('HeaderDevice: Creating')
---> 31         header_device = self.device_factory.create_header_device(fl_header_device)
     32         logger.info('HeaderDevice: Injecting into NWB')
     33         self.device_injector.inject_all_devices(nwb_content, [header_device])

~/proj/rec_to_nwb/rec_to_nwb/processing/tools/beartype/beartype.py in func_beartyped(__beartype_func, *args, **kwargs)

~/proj/rec_to_nwb/rec_to_nwb/processing/nwb/components/device/device_factory.py in create_header_device(cls, fl_header_device)
     94             commit_head=fl_header_device.global_configuration['commit_head'],
     95             system_time_at_creation=fl_header_device.global_configuration['system_time_at_creation'],
---> 96             file_path=fl_header_device.global_configuration['file_path']
     97         )

~/opt/anaconda3/envs/nwb/lib/python3.6/site-packages/hdmf/utils.py in func_call(*args, **kwargs)
    557         if is_method:
    558             def func_call(*args, **kwargs):
--> 559                 pargs = _check_args(args, kwargs)
    560                 return func(args[0], **pargs)
    561         else:

~/opt/anaconda3/envs/nwb/lib/python3.6/site-packages/hdmf/utils.py in _check_args(args, kwargs)
    550                 if parse_err:
    551                     msg = '%s: %s' % (func.__qualname__, ', '.join(parse_err))
--> 552                     raise ExceptionType(msg)
    553 
    554             return parsed['args']

TypeError: HeaderDevice.__init__: None is not allowed for 'headstage_serial' (expected 'str', not None), None is not allowed for 'headstage_smart_ref_on' (expected 'str', not None), None is not allowed for 'headstage_auto_settle_on' (expected 'str', not None), None is not allowed for 'controller_firmware_version' (expected 'str', not None), None is not allowed for 'controller_serial' (expected 'str', not None), None is not allowed for 'headstage_firmware_version' (expected 'str', not None), None is not allowed for 'qt_version' (expected 'str', not None), None is not allowed for 'compile_date' (expected 'str', not None), None is not allowed for 'compile_time' (expected 'str', not None), None is not allowed for 'headstage_gyro_sensor_on' (expected 'str', not None), None is not allowed for 'headstage_mag_sensor_on' (expected 'str', not None), None is not allowed for 'trodes_version' (expected 'str', not None), None is not allowed for 'headstage_accel_sensor_on' (expected 'str', not None), None is not allowed for 'commit_head' (expected 'str', not None)