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I have just upgraded my botframework from 3.0 to 3.5. it made changes into packages.config file and web.config file. I build the visual studio solution and it's building. but when I start the bot emulator it and send a message Hi, it gives me a error " Response status code does not indicate success: 400" and emulator displayed this message "Exception: Object reference not set to an instance of an object. [File of type 'text/plain']" see below image.

See this image My question is it require to upgrade the bot connector (at azure side) also after upgrading the bot framework. I am not sure what is the problem here. please suggests

Ezequiel Jadib
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Sandy
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    Without seeing your code will be extremely hard to know what's going on. It seems an issue in the code. – Ezequiel Jadib Jan 17 '17 at 10:28
  • It appears your bot is throwing an exception, and that text is getting returned to the emulator in a reply message. Can you catch the exception on the bot side where it is thrown? – Eric Anderson Jan 17 '17 at 18:58
  • Ok. I got this is not an issue related to framework. unfortunately it was Luis Api service which was down by Microsoft. now it is working. need to close this thread. – Sandy Jan 18 '17 at 14:54
  • Ok, good to know that was related to http://stackoverflow.com/questions/41693941/luis-an-item-with-the-same-key-has-already-been-added. You can delete this question if you want – Ezequiel Jadib Jan 19 '17 at 22:20

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