D:CLCLpackagesMicrosoft.Owin.2.1.0libnet45Microsoft.Owin.dll

using System;
using System.Threading.Tasks;
using Microsoft.Owin;
using Owin;

[assembly: OwinStartup(typeof(CL.Startup))]

public partial class Startup
{
    public void Configuration(IAppBuilder app)
    {
        // Any connection or hub wire up and configuration should go here
        app.MapSignalR();
    }
}

System.EntryPointNotFoundException: The following errors occurred while attempting to load the app.
    - The OwinStartupAttribute.FriendlyName value '' does not match the given value 'CL.Startup' in Assembly 'App_Code.g9dw5cpb, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null'.
    - The given type or method 'CL(1).Startup' was not found. Try specifying the Assembly.
    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.