Cognitive-services-speech-sdk: SPXERR_EXTENSION_LIBRARY_NOT_FOUND in UWP

[PeterKhouri68]

I have code using Microsoft.CognitiveServices.Speech services in a UWP app. While trying to do keyword spotting, I get the following error:
Exception with an error code: 0x24 (SPXERR_EXTENSION_LIBRARY_NOT_FOUND)

On the following line of code:
```cs
await recognizer.StartKeywordRecognitionAsync(model).ConfigureAwait(false);
````

Using 1.5.1 version of the SDK.

[MahadevanSrinivasan]

Keyword spotting for UWP is not available in the current release. We are working on it and it will be added really soon.

[daltskin]

Are there updates on the time frame for this being supported?

[ZaherAirout]

@daltskin
Can you include additional DLL named "Microsoft.CognitiveServices.Speech.extension.kws.dll"
I had the same error in another enviroment (python code not UWP) and I solved it by adding this DLL

[daltskin]

Thanks, but that doesn't work.

---

Microsoft Visual Studio

A reference to 'C:Users**.nugetpackagesmicrosoft.cognitiveservices.speech1.6.0runtimeswin-x64nativeMicrosoft.CognitiveServices.Speech.extension.kws.dll' could not be added. Please make sure that the file is accessible, and that it is a valid assembly or COM component.

OK

[tom1milman]

I contacted Microsoft about this, the devs told me that kws is not supported for UWP. I had to find a workaround, you can see it in this repository.