Polyglot Notebooks unable to create a new notebook. Unable to run a cell. Unable to view .NET Interactive on the kernel selection.

[adrianlfns]

Describe the bug

I have installed Polyglot Notebooks plugin on my vs code. I know for a fact that the dotnet interactive is installed (microsoft.dotnet-interactive 1.0.707101). The .NET SDK that I have installed is (10.0.102).

1 When I open new Polyglot notebook from vs code via File -> New File I get the error below

2026-01-22 16:45:01.294 [error] [Window] command 'polyglot-notebook.fileNew' not found: Error: command 'polyglot-notebook.fileNew' not found
at lZe.n (vscode-file://vscode-app/c:/Users/aalfonso/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/workbench.desktop.main.js:1348:3890)
at lZe.executeCommand (vscode-file://vscode-app/c:/Users/aalfonso/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/workbench.desktop.main.js:1348:3822)
at async Nce.value (vscode-file://vscode-app/c:/Users/aalfonso/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/out/vs/workbench/workbench.desktop.main.js:3830:5511)
2026-01-22 16:50:48.323 [error] [Window] An unknown error occurred. Please consult the log for more details.

2 create a blank file and I put extension .ipynb. In that case I have not way to run a C# cell. Also on the select kernel I don't see the option for dotnet interactive (see screenshot below).

Any help will be appreciated.

Thank you in advance

Adrian

Please complete the following:

Which version of .NET Interactive are you using? (In a notebook, run the #!about magic command. ):

• OS
  • Windows 11
  • Windows 10
  • macOS
  • Linux (Please specify distro)
  • iOS
  • Android
• Browser
  • Chrome
  • Edge
  • Firefox
  • Safari
• Frontend
  • Jupyter Notebook
  • Jupyter Lab
  • nteract
  • Visual Studio Code
  • Visual Studio Code Insiders
  • Visual Studio
  • Other (please specify)

Screenshots

If applicable, please add screenshots of the entire VS Code window.