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Ich bin neu zu signalisieren r und ich versuche, eine grundlegende Chat-Anwendung in C# Visual Studio 2012 zu erstellen, aber ich bekomme folgenden Fehler.Fehler in owin Startup-Klasse Visual Studio 2012
The following errors occurred while attempting to load the app.
- No assembly found containing an OwinStartupAttribute.
- The discovered startup type 'SignalRTutorials.Startup, SignalRTutorials, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
conflicts with the type 'Microsoft.VisualStudio.Web.PageInspector.Runtime.Startup, Microsoft.VisualStudio.Web.PageInspector.Runtime, Version=1.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
Remove or rename one of the types, or reference the desired type directly.
To disable OWIN startup discovery, add the appSetting owin:AutomaticAppStartup with a value of "false" in your web.config.
To specify the OWIN startup Assembly, Class, or Method, add the appSetting owin:AppStartup with the fully qualified startup class or configuration method name in your web.config.
ich geschaffen habe 3 Dateien:
1) erste ist Letschat.cs Klasse:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.AspNet.SignalR;
using Microsoft.AspNet.SignalR.Hubs;
namespace SignalRTutorials
{
[HubName("myChatHub")]
public class LetsChat:Hub
{
public void send(string message)
{
Clients.All.addMessage(message);
}
}
}
2) zweite Datei chat.aspx als
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Chat.aspx.cs" Inherits="SignalRTutorials.Chat" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="Scripts/jquery-1.6.4.min.js"></script>
<script src="Scripts/jquery-1.6.4-vsdoc.js"></script>
<script src="Scripts/jquery-1.6.4.min.js"></script>
<script src="Scripts/jquery.signalR-2.0.0.js"></script>
<script src="Scripts/jquery.signalR-2.0.0.min.js"></script>
</head>
<body>
<form id="form1" runat="server">
<script type="text/javascript">
$(function()
{
var IWannaChat=$.connection.myChatHub;
IWannaChat.client.addMessage=function(message){
$('#listMessages').append('<li>'+message+'</li>');
};
$("#SendMessage").click(function(){
IWannaChat.server.send($('#txtMessage').val());
});
$.connection.hub.start();
});
</script>
<div>
<input type="text" id="txtMessage" />
<input type="text" id="SendMessage" value="broadcast" />
<ul id="listMessages">
</ul>
</div>
</form>
</body>
</html>
3) Klasse Benannt als Startup.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Web;
using System.Web.Routing;
using Microsoft.AspNet.SignalR;
using Microsoft.Owin.Security;
using Owin;
namespace SignalRTutorials
{
public class Startup
{
public void Configuration(IAppBuilder app)
{
app.MapSignalR();
}
}
}
Ich weiß nicht, wo ich falsch mache, jede Hilfe in dieser Hinsicht wird geschätzt.
Welche Versionen von .NET und SignalR verwenden Sie? – nphx
.net 4.5 Visual Studio 2012 und Signal r 2.0 –
Können Sie versuchen, ein Assembly-Level-Attribut [Assembly: OwinStartup (typeof (SignalRTutorials.Startup))], um zu sehen, ob das das Problem löst? – Praburaj