Unable to 'func start' - Value cannot be null. (Parameter 'provider')

[brgsstm]

Found Python version 3.11.9 (py).

Azure Functions Core Tools
Core Tools Version: 4.0.6518 Commit hash: N/A +74ed9095fdd6c5326276aae6b8a7d41ccbdeb6aa (32-bit)
Function Runtime Version: 4.35.4.23179

[2024-12-23T12:10:21.035Z] A host error has occurred during startup operation '7778c4b0-3db5-41ad-a663-17d8c31f8218'.
[2024-12-23T12:10:21.041Z] Microsoft.Azure.WebJobs.Script: WorkerConfig for runtime: python not found.
[2024-12-23T12:10:21.055Z] Failed to stop host instance '11442eb7-fabb-4f60-9d48-0e53af2c843e'.
[2024-12-23T12:10:21.056Z] Microsoft.Azure.WebJobs.Host: The host has not yet started.
Value cannot be null. (Parameter 'provider')
[2024-12-23T12:10:21.070Z] Host startup operation has been canceled

[surgupta-msft]

Can you try again with the latest coretools version 4.0.6594? I tried a quick repro and it worked fine.

[brgsstm]

Can you try again with the latest coretools version 4.0.6594? I tried a quick repro and it worked fine.

Apologies for the late reply. I'm using Choco, I uninstalled the azure-functions-core-tools package and reinstalled specifically the version you are referring to, yet for some reason I was still getting 4.0.6518... It's definitely being uninstalled as 'func' does not run once uninstalled.

If I reference func.exe via it's file path directly this now works though...

[saadalia]

I can see that you are trying to run it from VS Code,

Can you please go to the Azure Functions Extension Settings -> Azure Functions: Func Cli Path

vscode://settings/azureFunctions.funcCliPath

Set it to match the Choco path, since it is up to date and working