No parameterless constructor defined for this object after configuration for always running in IIS

question
1

I have installed HangFire and also HangFire Autofac.
All workes fine. I have no problems resolving dependancies and my enqueued jobs are fired without problems. Now i have a need to schedule a job in the night so i want to configure my IIS to always running. So i followed http://docs.hangfire.io/en/latest/deployment-to-production/making-aspnet-app-always-running.html and configured as so. When i now run an enqueued job i am getting an error:
No parameterless constructor defined for this object

Has anyone an idea about this?

My Global.asax:
protected void Application_Start(object sender, EventArgs e)
{
AreaRegistration.RegisterAllAreas();
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
BundleConfig.RegisterBundles(BundleTable.Bundles);

#if DEBUG
BundleTable.EnableOptimizations = false;
#else
BundleTable.EnableOptimizations = true;
#endif

        MvcHandler.DisableMvcResponseHeader = true;

        // Clears all previously registered view engines.
        ViewEngines.Engines.Clear();
        
        ViewEngines.Engines.Add(new RazorViewEngine());

        JsonConvert.DefaultSettings = () => new JsonSerializerSettings
        {
            Formatting = Formatting.Indented,
            ReferenceLoopHandling = ReferenceLoopHandling.Ignore
        };
    
        HangfireBootstrapper.Instance.Start();
    }

    protected void Application_End(object sender, EventArgs e)
    {
        HangfireBootstrapper.Instance.Stop();
    }

My StartUp.cs
public partial class Startup
{
public void Configuration(IAppBuilder app)
{
// Configure dependancies
Bootstrapper.SetAutofacContainer(app);

        // Configure authentication
        ConfigureAuth(app);

        // Configure Hangfire
        var dashboardOptions = new DashboardOptions { Authorization = new[] { new HangfireAuthorizationFilter() } };
        app.UseHangfireDashboard("/hangfire", dashboardOptions);        
    }
}

Here is my Autofac configuration:
public class Bootstrapper
{
public static void SetAutofacContainer(IAppBuilder app)
{
var builder = new ContainerBuilder();

        builder.RegisterControllers(Assembly.GetExecutingAssembly());
        builder.RegisterModule<AutofacWebTypesModule>();
        builder.RegisterFilterProvider();

        builder.Register(c => new HttpContextWrapper(HttpContext.Current)).As<HttpContextBase>().InstancePerLifetimeScope();

        builder.RegisterType<DataContextFactory>().As<IDataContextFactory>().InstancePerLifetimeScope();
        builder.RegisterType(typeof(EDMSContext)).As(typeof(DbContext)).InstancePerLifetimeScope();
        builder.RegisterType<EDMSContext>().AsSelf().InstancePerLifetimeScope();


        builder.RegisterModule(new IdentityModule());
        builder.RegisterModule<AutofacModule>();

        // Automapper
        var autoMapperConfig = new MapperConfiguration(cfg =>
        {
            cfg.AddProfile(new ReportingAutoMapperProfile());
            cfg.AddProfile(new WebAutoMapperProfile());
        });
        builder.Register(ctx => autoMapperConfig.CreateMapper()).SingleInstance();
        builder.RegisterModule<AutofacModule>();

        var container = builder.Build();
        GlobalConfiguration.Configuration.UseAutofacActivator(container);
        DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
    }
}
1 Like
3

Ohh i thought it worked but it seems not to work.
Pffffff. So again, i have no clue

4

I’ve done pretty much the same thing and have the same problem.