How to make vscode-sonic-pi.runCell work?

[iamjonny]

On windows 10, trying to run a focussed cell in a .pibook

Appears the run cell command isn't working, even when launched from command palette.

I thought it might need something like Jupyter Notebook extension (from microsoft) but still this command won't play the cell in the tutorial.pibook, or other .pibooks

Not sure if I'm misunderstanding what's meant to happen.

The System Notebook: Execute Cell command work, in case that helps troubleshoot.

THANKS!