Error when trying to use LanguageServices with Microsoft.Bot.Builder.AI.QnA 4.15.0

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Version

netcoreapp3.1 + Microsoft.Bot.Builder.AI.QnA 4.15.0

Describe the bug

Version 4.15 (latest) of Microsoft.Bot.Builder.AI.QnA breaks when trying to connect to a LanguageServices published KB. This does not happen if using the project library included when creating the bot from Azure or when using Azure.AI.Language.QuestionAnswering.QuestionAnsweringClient.

To Reproduce

Steps to reproduce the behavior:

using Microsoft.Bot.Builder.AI.QnA;
using Microsoft.Extensions.Configuration;

var qnaServiceType = configuration["QnAServiceType"];
QnAMaker myQnA = new QnAMaker(new QnAMakerEndpoint
{
    KnowledgeBaseId = configuration["QnAKnowledgebaseId"],
    EndpointKey = configuration["QnAEndpointKey"],
    Host = configuration["QnAEndpointHostName"],
    QnAServiceType = qnaServiceType
});

Expected behavior

The project should provide up to date Microsoft.Bot.Builder.AI.QnA version that is compatible with the Language Service Questions Answering that you are promoting in Azure.

Additional context

This piece of code was taken from the code auto-generated after creating a bot for language services. This appears to rely on a modified version of Microsoft.Bot.Builder.AI.QnA that is not available in NuGet, but rather included as some embedded SDK.

[ramfattah]

Hi @effirmaevei, looks like this is currently being worked on - pull-request #6179.

[ramfattah]

I am closing this one for now, feel free to re-open if you are still having issues.