在Microsoft Bot Framework中难以访问现有对话中的消息

我正在尝试构建一个单独的应用程序-基本上是在我的Intranet上运行的守护程序-可以连接到Bot Connector应用程序并访问用户与漫游器之间的现有对话.

I'm trying to build a separate app - basically a daemon running on my intranet - that can connect to a Bot Connector app and access an existing conversation between a user and the bot.

首先，我使用DirectLine NuGet程序包，然后通过模拟器从机器人开始的对话中搜索带有对话ID的现有消息.

To start at this, I'm using the DirectLine NuGet package, and then searching for existing messages with the conversationId found in a conversation I've started with the bot via the emulator.

例如，我启动了模拟器，并获得了sessionId"8a684db8".在控制台应用程序中，我具有以下相关代码:

For example, I fired up the emulator, and got the conversationId "8a684db8". Over in my console app, I've got the following relevant code:

var uri = new Uri("https://directline.botframework.com");
            DirectLineClientCredentials creds = new DirectLineClientCredentials(secret); //lot into the bot framework
            DirectLineClient client = new DirectLineClient(uri, creds); //connect the client
            Conversations convs = new Conversations(client); //get the list of conversations belonging to the bot? Or does this start a new collection of conversations?
            var existing_conv_messages = convs.GetMessages(convo_id);

现在，当我尝试运行它时，在尝试查找现有消息的最后一行出现了未找到"错误.

Now, when I try to run it, I'm getting a "Not Found" error on the last line where I tried to find existing messages.

有人在这里有解决方案吗?

Anyone have a solution here?