Failures when trying to run ImageGallery.AzFunctions

[mrosen]

Thanks for this project. This sort of authoritative, non-trivial example is very badly needed. Sadly, it does not work for me. I'm following the example in the Channel9 Video at 5:00.

When I run the project, I get a "No job functions found." failure. Duh. I need to build the project (non-default VStudio settings...). Moving on ...

But then the 2nd problem: Can't determine project language from files ... Extension bundle configuration should not be present..." I'm stopped cold here. Please advise / fix.

Can't determine project language from files. Please use one of [--csharp, --javascript, --typescript, --java, --python, --powershell]
Can't determine project language from files. Please use one of [--csharp, --javascript, --typescript, --java, --python, --powershell]
Can't determine project language from files. Please use one of [--csharp, --javascript, --typescript, --java, --python, --powershell]

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Azure Functions Core Tools (2.7.2508 Commit hash: 4da36643c32783a832094318afcd679fa9d76455)
Function Runtime Version: 2.0.13351.0
Extension bundle configuration should not be present for the function app with pre-compiled functions. Please remove extension bundle configuration from host.json: C:\Users\micha\dev\learning\BasicImageGallery\CoreImageGallery\ImageGallery.AzFunctions\bin\Debug\netstandard2.0\host.json

I tried removing the referenced configuration from the generated host.json file but that didn't work either and seems wrong anyway.