Jupyter notebook 的一个问题

Traceback (most recent call last):
  File "/home/users/x/miniconda3/lib/python3.7/site-packages/traitlets/traitlets.py", line , in get
    value = obj._trait_values[self.name]
KeyError: 'allow_remote_access'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/users/x/miniconda3/lib/python3.7/site-packages/notebook/notebookapp.py", line , in _default_allow_remote
    addr = ipaddress.ip_address(self.ip)
  File "/home/users/x/miniconda3/lib/python3.7/ipaddress.py", line , in ip_address
    address)
ValueError: '' does not appear to be an IPv4 or IPv6 address

During handling of the above exception, another exception occurred:

https://forums.fast.ai/t/error-while-trying-to-open-jupyter-notebook-in-paperspace/22634