Upgrading 3.80 to 3.90 Circular component dependency detected

My Dependency Registrar looks like this:

namespace Nop.Plugin.Misc.MegaMetro.Infrastructure
{
    public class DependencyRegistrar : IDependencyRegistrar
    {
        /// <summary>
        /// Register services and interfaces
        /// </summary>
        /// <param name="builder">Container builder</param>
        /// <param name="typeFinder">Type finder</param>
        /// <param name="config">Config</param>
        public virtual void Register(ContainerBuilder builder, ITypeFinder typeFinder, NopConfig config)
        {
            //installation localization service
            builder.RegisterType<Web.Infrastructure.Installation.InstallationLocalizationService>().As<IInstallationLocalizationService>().InstancePerLifetimeScope();

            //controllers (we cache some data between HTTP requests)
            builder.RegisterType<MegaMetroController>()
                .WithParameter(ResolvedParameter.ForNamed<ICacheManager>("nop_cache_static"));

            //factories (we cache presentation models between HTTP requests)

            builder.RegisterType<MegaProductModelFactory>().As<IMegaProductModelFactory>()
                .WithParameter(ResolvedParameter.ForNamed<ICacheManager>("nop_cache_static"))
                .InstancePerLifetimeScope();


        }

        /// <summary>
        /// Order of this dependency registrar implementation
        /// </summary>
        public int Order
        {
            get { return 2; }
        }
    }    
I get this error on trying to load the View.
Autofac.Core.DependencyResolutionException: Circular component dependency detected: MegaMetroController -> Nop.Plugin.Misc.MegaMetro.Factories.MegaProductModelFactory -> Nop.Plugin.Misc.MegaMetro.Factories.MegaProductModelFactory.