[Solved] ASP.Net SignalR Error: OwinStartup is not declared

 Please help

1. ownstartup is not declared

2. attributes cannot be applied to local variables

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script src="../Scripts/jquery.signalR-2.1.2.min.js"></script>
<script type="text/javascript" src="signalr/hubs"></script>
<script type="text/javascript">
    $(function () {
        $.connection.hub.start().done(function () {
            setInterval(GetData, 1000);
        }).fail(function (e) {
            alert(e);
        });
 
        $('#btnAdd').on('click', function () {
            var customer = {};
            customer.Name = $('#txtName').val();
            customer.Country = $('#txtCountry').val();
            $.ajax({
                type: "POST",
                url: "WebService.asmx/InsertCustomer",
                data: JSON.stringify({ customer: customer }),
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (response) {
                },
                failure: function (response) {
                    alert(response.responseText);
                },
                error: function (response) {
                    alert(response.responseText);
                }
            });
 
            return false;
        });
    });
 
    function GetData() {
        $.ajax({
            type: "POST",
            url: "WebServicePatient.asmx/GetCustomers",
            data: '{}',
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            async: true,
            success: function (response) {
                var rows = '';
                $(response.d).each(function () {
                    rows += "<tr><td>" + this.Id + "</td><td>" + this.Name + "</td><td>" + this.Country + "</td></tr>";
                });
                $('.tblCustomers tbody').empty();
                $('.tblCustomers tbody').append(rows);
            },
            failure: function (response) {
                alert(response);
            },
            error: function (response) {
                alert(response);
            }
        });
    }
</script>

Imports System.Web.Routing
Imports Microsoft.AspNet.FriendlyUrls

Public Module RouteConfig
    Sub RegisterRoutes(ByVal routes As RouteCollection)
        Dim settings As FriendlyUrlSettings = New FriendlyUrlSettings()
        settings.AutoRedirectMode = RedirectMode.Off
        routes.EnableFriendlyUrls(settings)
        'RouteTable.Routes.MapHubs()

    End Sub
End Module

Imports System
Imports Microsoft.AspNet.Identity
Imports Microsoft.AspNet.Identity.EntityFramework
Imports Microsoft.AspNet.Identity.Owin
Imports Microsoft.Owin
Imports Microsoft.Owin.Security.Cookies
Imports Microsoft.Owin.Security.DataProtection
Imports Microsoft.Owin.Security.Google
Imports Owin

Partial Public Class Startup

    ' For more information on configuring authentication, please visit http://go.microsoft.com/fwlink/?LinkId=301883
    Public Sub ConfigureAuth(app As IAppBuilder)
        'Configure the db context, user manager and signin manager to use a single instance per request
        app.CreatePerOwinContext(AddressOf ApplicationDbContext.Create)
        app.CreatePerOwinContext(Of ApplicationUserManager)(AddressOf ApplicationUserManager.Create)
        app.CreatePerOwinContext(Of ApplicationSignInManager)(AddressOf ApplicationSignInManager.Create)

        ' Enable the application to use a cookie to store information for the signed in user
        app.UseCookieAuthentication(New CookieAuthenticationOptions() With {
            .AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
            .Provider = New CookieAuthenticationProvider() With {
                .OnValidateIdentity = SecurityStampValidator.OnValidateIdentity(Of ApplicationUserManager, ApplicationUser)(
                    validateInterval:=TimeSpan.FromMinutes(30),
                    regenerateIdentity:=Function(manager, user) user.GenerateUserIdentityAsync(manager))},
            .LoginPath = New PathString("/Account/Login")})
        ' Use a cookie to temporarily store information about a user logging in with a third party login provider
        app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie)

        ' Enables the application to temporarily store user information when they are verifying the second factor in the two-factor authentication process.
        app.UseTwoFactorSignInCookie(DefaultAuthenticationTypes.TwoFactorCookie, TimeSpan.FromMinutes(5))

        app.UseTwoFactorRememberBrowserCookie(DefaultAuthenticationTypes.TwoFactorRememberBrowserCookie)
        app.MapSignalR()
    End Sub
End Class