ubuntu@ubuntu-xenial:~$ ./nc-create-nx-device-20-ydk.py ssh://admin:cisco@10.60.0.110 -v
2017-09-16 01:30:46,427 - ydk - INFO - Path where models are to be downloaded: /home/ubuntu/.ydk
2017-09-16 01:30:46,434 - ydk - INFO - Connected to 10.60.0.110 on port 830 using ssh
2017-09-16 01:30:46,559 - ydk - INFO - Executing CRUD create operation
2017-09-16 01:30:46,559 - ydk - ERROR - Libyang ERROR: Module not found. Path: '/ydk'
Traceback (most recent call last):
  File "./nc-create-nx-device-20-ydk.py", line 88, in <module>
    crud.create(provider, system)
  File "/usr/local/lib/python2.7/dist-packages/ydk/errors/error_handler.py", line 112, in helper
    return func(self, provider, entity, *args, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/ydk/services/crud_service.py", line 30, in create
    return self._crud.create(provider, entity)
  File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
    self.gen.throw(type, value, traceback)
  File "/usr/local/lib/python2.7/dist-packages/ydk/errors/error_handler.py", line 82, in handle_runtime_error
    _raise(_exc)
  File "/usr/local/lib/python2.7/dist-packages/ydk/errors/error_handler.py", line 56, in _raise
    raise exc
ydk.errors.YPYInvalidArgumentError:  Path is invalid: ydk:create
2017-09-16 01:30:46,602 - ydk - INFO - Disconnected from device
ubuntu@ubuntu-xenial:~$