Kernel Unknown on Install on MacBook Air

General
1

Trying to assist friend that cannot get JupyterLab to work on MacBook Air. I am new at this so appreciate the patience. Everything I understand so far has been learned in the last two days researching so not very knowledgeable about coding right into Terminal or finding executables so hopefully there is some handholding someone can do with us.

All I can describe is that we have Python on the Mac somewhere and have attempted to install and uninstall Anaconda/JupyterLab multiple times and within JupyterLab we have the orange “Kernel Unknown” rectangle persistently in the right corner. It’s not like it is an error and I can click and do a traceback to share anything with you all (I just learned about %tb today btw).

Below the Kernel Unknown rectangle it says Python 3 (ipykernel) and a lightning bolt.

Anything that is typed into the prompt line in Jupyter - literally nothing happens.

In the Kernel menu, we see

Start Preferred Kernel check mark Python 3 (ipykernel)

Use No Kernel No Kernel

Use Kernel from Preferred Session Use Kernel from Other Session Untitled3.ipynb

He has tried creating multiple sessions and nothing happens. We are afraid to uninstall python given the worry of truly removing all files but also accidentally grabbing Mac OS files. (Currently on macOS Big Sur Version 11.7.10).

The only other thing to offer is at the top of the Jupyter session it is an untitled session and it says “Last Checkpoint 21 days ago”.

Tried installing and uninstalling and can’t get it to work.

2

Those interested, there’s more details in this unacknowledged cross-post here.

Please don’t cross-post without linking all places you post essentially the same content.
Otherwise you can cause others to waste time answering the same thing as someone else said elsewhere.
It also can lead to creating silos of information because those finding a post like this don’t know there is a related one somewhere else that may have a solution.