IBM Watson conversation service error : cannot convert from 'method group' to 'conversation.onMessage'

Question

我正在尝试 运行 IBM Watson conversation service 和 following here, code snippet

private Conversation m_Conversation = new Conversation();
    private string m_WrokspaceID = "xyz";
    private string m_input = "help";


    // Use this for initialization
    void Start () {
        Debug.Log("user : " + m_input);
        m_Conversation.Message(OnMessage, m_WrokspaceID, m_input);
    }

    void OnMessage(MessageResponse resp, string customData) {
        foreach (Intent mi in resp.intents)
        {
            Debug.Log("intent : " + mi.intent + ", confidence :" + mi.confidence);
        }

        Debug.Log("response :" + resp.output.text);
    }

但是我收到这个错误

cannot convert from 'method group' to 'conversation.onMessage'

我做错了什么？我从 watson 官方 github repo 获得的代码片段。

对象作为建议的答案返回：

Answer 1

根据Conversation源代码中的line 32，委托修改为：

public delegate void OnMessage(object resp, string customData);

您必须更改 OnMessage 方法以反映这一点：

void OnMessage(object resp, string customData) {
    // ...
}

Answer 2

您可以将响应转换为字典并尝试从中获取值。使用通用对象而不是静态数据模型，您可以通过响应传递更多信息。

private void OnMessage(object resp, string customData)
{
    Dictionary<string, object> respDict = resp as Dictionary<string, object>;
    object intents;
    respDict.TryGetValue("intents", out intents);

    foreach(var intentObj in (intents as List<object>))
    {
        Dictionary<string, object> intentDict = intentObj as Dictionary<string, object>;

        object intentString;
        intentDict.TryGetValue("intent", out intentString);

        object confidenceString;
        intentDict.TryGetValue("confidence", out confidenceString);

        Log.Debug("ExampleConversation", "intent: {0} | confidence {1}", intentString.ToString(), confidenceString.ToString());
    }
}