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I just created a new bot with bot framework V4 using the Bot Framework v4 SDK Templates for VS 2019. I created a new Echo bot based on .net core 3.1, when I run it and try to use it with the Emulator, I get an exception right away as this:

Exception Image

System.NullReferenceException: 'Object reference not set to an instance of an object.'

Any idea?

Detailed Stacktrace: https://gist.github.com/M365Devme/74e0aab0b4cbade9900835bd0cc6b097

This is the project I used: enter image description here

M365 Dev
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  • Welcome to Stack Overflow. Please have a look at the handy guide to see the steps you can take to get a better answer faster: https://stackoverflow.com/help/how-to-ask – Kyle Delaney Jan 08 '21 at 21:55
  • I cannot reproduce your problem. Please edit the (correctly formatted) stack trace into your question. And can you link to the specific template you're using? – Kyle Delaney Jan 08 '21 at 21:57
  • @KyleDelaney I modified the question to include required information. I pasted a screenshot of the project, but what do you mean by a link to the template? I added it from the extensions in VS 2019. – M365 Dev Jan 10 '21 at 00:33
  • I meant a link to the Visual Studio marketplace, like this: https://marketplace.visualstudio.com/items?itemName=BotBuilder.botbuilderv4 – Kyle Delaney Jan 11 '21 at 18:40

1 Answers1

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From this comment:

This is a known issue in 4.11 sdk. The exception is internally caught, and can be safely ignored. More information can be found here: https://github.com/microsoft/botbuilder-dotnet/issues/4867

Kyle Delaney
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