R kernel not available when opening Deepnote notebooks in VS Code extension

[wamalab]

Applies To

• Notebooks (.deepnote files)
• Interactive Window and/or Cell Scripts (.py files with #%% markers)

What happened?

When I open a Deepnote notebook through the Deepnote VS Code extension, R is not available from the kernel picker, even though:

• R is installed

• IRkernel is installed and registered

• R works normally in local .ipynb notebooks in VS Code

This only happens with notebooks opened via the Deepnote extension. Regular Jupyter notebooks show the R kernel normally.

VS Code Version

Version: 1.100.2 (user setup) Commit: 848b80aeb52026648a8ff9f7c45a9b0a80641e2e Date: 2025-05-14T21:47:40.416Z Electron: 34.5.1 ElectronBuildId: 11369351 Chromium: 132.0.6834.210 Node.js: 20.19.0 V8: 13.2.152.41-electron.0 OS: Windows_NT x64 10.0.26100

Deepnote Extension Version

1.1.4

Deepnote logs

Coding Language and Runtime Version

R 4.5.1