问题
Every time I try to install a Teams Bot App that I am building, I expect to see a "conversationUpdate" type message. But I am not seeing this kind of a message all the time. It is very inconsistent and far between. Is there a reliable way to generate "conversationUpdate" type of message? I am essentially trying to find a good way to test Welcome Messages on my local?
来源：https://stackoverflow.com/questions/55415130/generating-a-conversationupdate-type-message-while-installing-an-app