Getting this Error on BOT EMULATION

Hi,

I am tring to simulate a bot with Microsoft Bot Emulator. I am getting this error.

System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 127.0.0.1:3978

at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)

at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)

--- End of inner exception stack trace ---

at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)

at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)

--- End of inner exception stack trace ---

at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)

at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)

at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()

at Microsoft.Bot.Connector.Emulator.ConversationModel.d__50.MoveNext()

The codebase is -

[BotAuthentication]
public class MessagesController : ApiController
{
///
/// POST: api/Messages
/// Receive a message from a user and reply to it
///
public async Task Post([FromBody]Activity activity)
{
if (activity.Type == "Message")
{
//ConnectorClient connector = new ConnectorClient(new Uri(activity.ServiceUrl));
// calculate something for us to return
//int length = (activity.Text ?? string.Empty).Length;
// return our reply to the user
//Activity reply = activity.CreateReply($"You sent {activity.Text} which was {length} characters");
//await connector.Conversations.ReplyToActivityAsync(reply);
string StockRateString;
StockLUIS StLUIS = await GetEntityFromLUIS(activity.Text);
if (StLUIS.intents.Count() > 0)
{
switch (StLUIS.intents[0].intent)
{
case "StockPrice":
StockRateString = await GetStock(StLUIS.entities[0].entity);
break;
case "StockPrice2":
StockRateString = await GetStock(StLUIS.entities[0].entity);
break;
default:
StockRateString = "Sorry, I am not getting you...";
break;
}
}
else
{
StockRateString = "Sorry, I am not getting you...";
}
//return activity.CreateReply(StockRateString);
}
else
{
HandleSystemMessage(activity);
}
var response = Request.CreateResponse(HttpStatusCode.OK);
return response;
}
private Activity HandleSystemMessage(Activity message)
{
if (message.Type == ActivityTypes.DeleteUserData)
{
// Implement user deletion here
// If we handle user deletion, return a real message
}
else if (message.Type == ActivityTypes.ConversationUpdate)
{
// Handle conversation state changes, like members being added and removed
// Use Activity.MembersAdded and Activity.MembersRemoved and Activity.Action for info
// Not available in all channels
}
else if (message.Type == ActivityTypes.ContactRelationUpdate)
{
// Handle add/remove from contact lists
// Activity.From + Activity.Action represent what happened
}
else if (message.Type == ActivityTypes.Typing)
{
// Handle knowing tha the user is typing
}
else if (message.Type == ActivityTypes.Ping)
{
}
return null;
}
private async Task<string> GetStock(string StockSymbol)
{
double? dblStockValue = await StockBot.GetStockRateAsync(StockSymbol);
if(dblStockValue == null)
{
return string.Format("This \"{0}\" is not a valid Stock Symbol", StockSymbol);
}
else
{
return string.Format("Stock price of {0} is {1}", StockSymbol, dblStockValue);
}
}
private static async Task GetEntityFromLUIS(string Query)
{
Query = Uri.EscapeDataString(Query);
StockLUIS Data = new StockLUIS();
using (HttpClient client = new HttpClient())
{
client.DefaultRequestHeaders.ExpectContinue = false;
string RequestURI = "https://westus.api.cognitive.microsoft.com/luis/v2.0/apps/27e3147e-21c9-4a11-ae26-3ea3a1dbf421?subscription-key=bb0397455aa54d9ca92c3f3f097420b9&q=" + Query;
HttpResponseMessage msg = await client.GetAsync(RequestURI);
if(msg.IsSuccessStatusCode)
{
var JsonDataResponse = await msg.Content.ReadAsStringAsync();
Data = JsonConvert.DeserializeObject(JsonDataResponse);
}
}
return Data;
}
}