I have copied a previous project and renamed it. Once I had successfully renamed all the name spaces and it build correctly. I got the following error when I ran the application:

    The following errors occurred while attempting to load the app.
    - The OwinStartup attribute discovered in assembly &#39;User Manager Interface&#39; referencing    startup type &#39;User_Manager_Interface.Startup&#39; conflicts with the attribute in assembly   &#39;Service Monitor Web Interface&#39; referencing startup type  &#39;Service_Monitor_Web_Interface.Startup&#39; because they have the same FriendlyName &#39;&#39;. Remove or   rename one of the attributes, or reference the desired type directly.
    To disable OWIN startup discovery, add the appSetting owin:AutomaticAppStartup with a value of &quot;false&quot; 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 figured out that if I comment out the first line below then the error goes away.

    //[assembly: OwinStartupAttribute(typeof(Service_Monitor_Web_Interface.Startup))]
    namespace Service_Monitor_Web_Interface
    {
    public partial class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            ConfigureAuth(app);
        }
    }
    }


I renamed my solution from User_Manager_Interface to Service_Monitor_Web_Interface.

I cant seem to find any places with the old name, howevel in the error it mentions it.

All asp.net Authentication Solutions on Gang of Coders

Total of 1 asp.net Authentication Solutions

Error renaming ASP.NET MVC project