Setting up and integrating Jupyter Notebook development environment with VSC

When I client the “Select Kernel” button at the top right in the screenshot below, it reveals an empty menu pictured at the top:

Here is “Python v3.8.5 (conda)” showing as selected at the bottom and slightly to the left:

Python (conda) v3.8.5 showing at bottom right

This exhaustive question on Stack Overflow with the same issue as mine includes many creative potential solutions: python - jupyter server : not started, no kernel in vs code - Stack Overflow

One Stack Overflow member recommends:

Someone else suggests:

Another member says:

None of the above resolved my original issue.

Here is a new twist: After installing jupyterlab or some other package (or set of packages), after restarting VSC, I I encountered this weird error:

It’s a condition box. I clicked: “Yes”. Jupyter is still not integrated properly.