Hi,

I am trying to set up a custom Umbraco Back Office Login for Umbraco 7.8.1. I have read a lot of articles on line about UmbracoCms.IdentityExtensions, that can be extended to use Google/Facebook login etc.

I have performed the following steps.

1. I have setup a clean / empty web project on Visual Studio Community 2017
2. Installed Umbraco CMS
3. PM> install-package UmbracoCMS
4. Ran the project and installed Umbraco. (it works ok)
5. PM>Install-Package UmbracoCms.IdentityExtensions This added an number of files to the App_Start folder. eg UmbracoStandardOwinStartup.cs and amended the web.config.

this is the code for 'UmbracoStandardOwinStartup.cs'

using Microsoft.Owin;
using Owin;
using Umbraco.Core;
using Umbraco.Core.Security;
using Umbraco.Web;
using Umbraco.Web.Security.Identity;
using Umbraco.IdentityExtensions;
using DemoProject;


//To use this startup class, change the appSetting value in the web.config called 
// "owin:appStartup" to be "UmbracoStandardOwinStartup"

[assembly: OwinStartup("UmbracoStandardOwinStartup", typeof(UmbracoStandardOwinStartup))]

namespace DemoProject
{
    /// <summary>
    /// The standard way to configure OWIN for Umbraco
    /// </summary>
    /// <remarks>
    /// The startup type is specified in appSettings under owin:appStartup - change it to "StandardUmbracoStartup" to use this class
    /// </remarks>
    public class UmbracoStandardOwinStartup : UmbracoDefaultOwinStartup
    {
        public override void Configuration(IAppBuilder app)
        {
            //ensure the default options are configured
            base.Configuration(app);

            /* 
             * Configure external logins for the back office:
             * 
             * Depending on the authentication sources you would like to enable, you will need to install 
             * certain Nuget packages. 
             * 
             * For Google auth:                 Install-Package UmbracoCms.IdentityExtensions.Google
             * For Facebook auth:                   Install-Package UmbracoCms.IdentityExtensions.Facebook
             * For Microsoft auth:                  Install-Package UmbracoCms.IdentityExtensions.Microsoft
             * For Azure ActiveDirectory auth:      Install-Package UmbracoCms.IdentityExtensions.AzureActiveDirectory
             * 
             * There are many more providers such as Twitter, Yahoo, ActiveDirectory, etc... most information can
             * be found here: http://www.asp.net/web-api/overview/security/external-authentication-services
             * 
             * For sample code on using external providers with the Umbraco back office, install one of the 
             * packages listed above to review it's code samples 
             *  
             */

            /*
             * To configure a simple auth token server for the back office:
             *             
             * By default the CORS policy is to allow all requests
             * 
             *      app.UseUmbracoBackOfficeTokenAuth(new BackOfficeAuthServerProviderOptions());
             *      
             * If you want to have a custom CORS policy for the token server you can provide
             * a custom CORS policy, example: 
             * 
             *      app.UseUmbracoBackOfficeTokenAuth(
             *          new BackOfficeAuthServerProviderOptions()
             *              {
             *                  //Modify the CorsPolicy as required
             *                  CorsPolicy = new CorsPolicy()
             *                  {
             *                      AllowAnyHeader = true,
             *                      AllowAnyMethod = true,
             *                      Origins = { "http://mywebsite.com" }                
             *                  }
             *              });
             */

        }
    }
}

Within the web.config I have added the line in side the appSettings.

<add key="owin:appStartup" value="UmbracoStandardOwinStartup" />

these lines have been added into the web.config as well.

 <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
  </dependentAssembly>
  <dependentAssembly>
    <assemblyIdentity name="Microsoft.Owin.Security.OAuth" publicKeyToken="31bf3856ad364e35" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
  </dependentAssembly>
  <dependentAssembly>
    <assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
  </dependentAssembly>
  <dependentAssembly>
    <assemblyIdentity name="Microsoft.Owin.Security.Cookies" publicKeyToken="31bf3856ad364e35" culture="neutral" />
    <bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.1.0.0" />
  </dependentAssembly>
  <dependentAssembly>

When I now run the project I get the following error.

The following errors occurred while attempting to load the app. - The OwinStartupAttribute.FriendlyName value 'UmbracoDefaultOwinStartup' does not match the given value 'UmbracoStandardOwinStartup' in Assembly 'umbraco, Version=1.0.6614.16987, Culture=neutral, PublicKeyToken=null'. - The given type or method 'UmbracoStandardOwinStartup' 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.

I have tried different permutations in the web.config file. such as

<add key="owin:appStartup" value="demoProject.UmbracoStandardOwinStartup" />

or

<add key="owin:appStartup" value="demoProject.demoProject.UmbracoStandardOwinStartup" />

or tried this amendment in 'UmbracoStandardOwinStartup.cs' [assembly: OwinStartup("UmbracoStandardOwinStartup", typeof(demoProject.UmbracoStandardOwinStartup))]

But still the error prevails. If I make the web.config entry

<add key="owin:appStartup" value="UmbracoDefaultOwinStartup" />

Then the umbraco project loads, but I assume this is the actual (umbraco) default and the startup code does not get fired, in the App_Startup

I have searched online for help, but am unable to find a solution.

Any thoughts.

thanks