Jupyter Notebook - Cannot Connect to Kernel

Question

I\'ve tried installing jupyter notebook using pip3 install jupyter. Every time i launch a new jupyter notebook, the notebook is unable to connect to the kernel. See screenshot b

Answer 1

I had the same issue where the kernel would simply not connect. Tried every solution, still no connection.

In the end I noticed some ValueError Exceptions being raised in the console where I started the jupyter client. The source of these exceptions was another python script in the same folder as the notebook.

Fixed the script. Fixed the notebook.