BC30451: 'DefaultAuthenticationTypes' is not declared. It may be inaccessible due to its protection level.

Sandra Woodburn 1 Reputation point
2022-01-03T17:51:00.74+00:00

Source Error:
Line 11: ' This is required if your application allows users to login
Line 12: app.UseCookieAuthentication(New CookieAuthenticationOptions() With {
Line 13: .AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
Line 14: .LoginPath = New PathString("/Account/Login")})
Line 15: app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie)

Detailed compiler output:

c:\windows\system32\inetsrv> "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe" /t:library /utf8output /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\d55f90ef\d1dae076_c100d801\Microsoft.Owin.Security.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\95aa434e\d7889685_c100d801\Newtonsoft.Json.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\e99fd386\66723067_c100d801\Microsoft.AspNet.FriendlyUrls.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.Extensions\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.Extensions.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\6c67d999\40cf7d60_c100d801\EntityFramework.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\32abfb48\ba5b5c6d_c100d801\Microsoft.AspNet.Web.Optimization.WebForms.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\28cb139a\51069788_c100d801\System.Web.Optimization.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Activation\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Activation.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ComponentModel.DataAnnotations\v4.0_4.0.0.0__31bf3856ad364e35\System.ComponentModel.DataAnnotations.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.IdentityModel\v4.0_4.0.0.0__b77a5c561934e089\System.IdentityModel.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Web\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Web.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_64\System.Web\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel\v4.0_4.0.0.0__b77a5c561934e089\System.ServiceModel.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.ApplicationServices\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.ApplicationServices.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.WebPages.Deployment\v4.0_1.0.0.0__31bf3856ad364e35\System.Web.WebPages.Deployment.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\df239d25\16006255_c100d801\Antlr3.Runtime.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\51820030\27855078_c100d801\Microsoft.Owin.Security.Facebook.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Activities.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\cb6bebe9\e0dacb68_c100d801\Microsoft.AspNet.Identity.Core.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\f67b8501\986a368d_c100d801\WebGrease.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\962b7716\11c02a5a_c100d801\AspNet.ScriptManager.jQuery.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\a0a8dc5c\08a58862_c100d801\EntityFramework.SqlServer.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Web.Infrastructure\v4.0_1.0.0.0__31bf3856ad364e35\Microsoft.Web.Infrastructure.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\23a180a2\47d8c273_c100d801\Microsoft.Owin.Host.SystemWeb.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\c2e4f097\c6863a71_c100d801\Microsoft.Owin.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\859e94ab\9ad9fb7c_c100d801\Microsoft.Owin.Security.OAuth.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_64\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.WorkflowServices\v4.0_4.0.0.0__31bf3856ad364e35\System.WorkflowServices.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\f0a66db6\7893fc6b_c100d801\Microsoft.AspNet.Identity.Owin.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\ac9f4c7f\c70d7f6f_c100d801\Microsoft.CodeDom.Providers.DotNetCompilerPlatform.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.DynamicData\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.DynamicData.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.Activities.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\821fdca8\020e7e7e_c100d801\Microsoft.Owin.Security.Twitter.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Serialization\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\4726657e\2cecf463_c100d801\Hostgator Steroid Taper Application Project.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml.Linq\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.Linq.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\4af079bd\616d4475_c100d801\Microsoft.Owin.Security.Cookies.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\24a75896\7e8cc479_c100d801\Microsoft.Owin.Security.Google.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\453435f6\7da39823_e7f5d701\SendGrid.SmtpApi.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\7ef422d4\cec8db7f_c100d801\Microsoft.ScriptManager.MSAjax.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\6942a2b0\a40c4e81_c100d801\Microsoft.ScriptManager.WebForms.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\c51b5e27\881e5f2c_e7f5d701\System.Web.Providers.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\4668c8da\2a1ee558_c100d801\AspNet.ScriptManager.bootstrap.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\26524c63\a3fa526a_c100d801\Microsoft.AspNet.Identity.EntityFramework.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\175dfb29\30cadf86_c100d801\Owin.dll" /R:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\assembly\dl3\d1bb84e0\2f38727b_c100d801\Microsoft.Owin.Security.MicrosoftAccount.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Data.DataSetExtensions\v4.0_4.0.0.0__b77a5c561934e089\System.Data.DataSetExtensions.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.CSharp\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.CSharp.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_64\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.WebPages.Deployment\v4.0_2.0.0.0__31bf3856ad364e35\System.Web.WebPages.Deployment.dll" /R:"C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.Services\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.Services.dll" /out:"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\App_Code.s6-n0mgz.dll" /debug- /nowarn:41008,40000,40008 /define:_MYTYPE=\"Web\" /imports:Microsoft.VisualBasic,System,System.Collections,System.Collections.Generic,System.Collections.Specialized,System.ComponentModel.DataAnnotations,System.Configuration,System.Linq,System.Text,System.Text.RegularExpressions,System.Web,System.Web.Caching,System.Web.DynamicData,System.Web.SessionState,System.Web.Security,System.Web.Profile,System.Web.UI,System.Web.UI.WebControls,System.Web.UI.WebControls.WebParts,System.Web.UI.HtmlControls,System.Xml.Linq,System.Web.Optimization /warnaserror- /optionInfer+ "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\App_Code.s6-n0mgz.0.vb" "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\App_Code.s6-n0mgz.1.vb" "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\App_Code.s6-n0mgz.2.vb" "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\App_Code.s6-n0mgz.3.vb" "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\App_Code.s6-n0mgz.4.vb" "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\1f1ec524\77c83871\App_Code.s6-n0mgz.5.vb"

Microsoft (R) Visual Basic Compiler version 14.7.3062
for Visual Basic 2012
Copyright (c) Microsoft Corporation. All rights reserved.

This compiler is provided as part of the Microsoft (R) .NET Framework, but only supports language versions up to Visual Basic 2012, which is no longer the latest version. For compilers that support newer versions of the Visual Basic programming language, see http://go.microsoft.com/fwlink/?LinkID=533241

D:\InetPub\vhosts\steroidtaper.net\httpdocs\App_Code\Startup.Auth.vb(13) : error BC30451: 'DefaultAuthenticationTypes' is not declared. It may be inaccessible due to its protection level.

    .AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                          ~~~~~~~~~~~~~~~~~~~~~~~~~~

D:\InetPub\vhosts\steroidtaper.net\httpdocs\App_Code\Startup.Auth.vb(15) : error BC30451: 'DefaultAuthenticationTypes' is not declared. It may be inaccessible due to its protection level.

    app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie)

and this is my startup.auth.vb file :

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 https://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))

    ' Enables the application to remember the second login verification factor such as phone or email.
    ' Once you check this option, your second step of verification during the login process will be remembered on the device where you logged in from.
    ' This is similar to the RememberMe option when you log in.
    app.UseTwoFactorRememberBrowserCookie(DefaultAuthenticationTypes.TwoFactorRememberBrowserCookie)

    ' Uncomment the following lines to enable logging in with third party login providers
    'app.UseMicrosoftAccountAuthentication(
    '    clientId:= "",
    '    clientSecret:= "")

    'app.UseTwitterAuthentication(
    '   consumerKey:= "",
    '   consumerSecret:= "")

    'app.UseFacebookAuthentication(
    '   appId:= "",
    '   appSecret:= "")

    'app.UseGoogleAuthentication(New GoogleOAuth2AuthenticationOptions() With {
    '   .ClientId = "",
    '   .ClientSecret = ""})
End Sub

End Class

Can anyone explain and help me resolve this error?

Thank you in advance.

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