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I am using a windows machine to start Jupyter notebook server on a virtual Ubuntu 16.04. I expect a URL as an output which I can paste in internet browser and run a .ipynb file. jupyter notebook --ip 0.0.0.0 is producing the following error after I have upgraded Python to 3.7.

*(Earlier to upgradation, the jupyter notebook was working fine)

pkj_admin@ip-50-60-0-75:~$  jupyter notebook --ip 0.0.0.0    
Traceback (most recent call last):
  File "/usr/local/bin/jupyter", line 5, in <module>
    from jupyter_core.command import main
ModuleNotFoundError: No module named 'jupyter_core'

Thanks

pkj
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2 Answers2

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I too faced this issue. I solved it using:

pip3 install jupyter
Kenny
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This is a very common issue with jupyter notebook. It says jupyter_core not found with current installation packages. It is messed up with paths.

jupyter_core might be installed locally but it is looking at root or sys python version. Try to uninstall there and reinstall jupyter.

>> python -m pip uninstall jupyter-core;python -m pip uninstall jupyter;

# inside conda env or similar env
>> pip uninstall jupyter
>> pip install jupyter

Ref: How to remove jupyter.

Saurav Solanki
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