How to remove Autofac dependency error from eShop Project/Solution?

I am working on an eShopOnContainers Project. I dont need Rabbitmq,docker and EventBus in this project so I removed it. But I am facing some errors related to Autofac dependencies.

public class Program
    {
        public static void Main(string[] args)
        {


            BuildWebHost(args)
                .MigrateDbContext<OrderingContext>((context, services) =>
                {
                    var env = services.GetService<IHostingEnvironment>();
                    var settings = 
services.GetService<IOptions<OrderingSettings>>();
                    var logger = 
services.GetService<ILogger<OrderingContextSeed>>();

                    new OrderingContextSeed()
                        .SeedAsync(context, env, settings, logger)
                        .Wait();
                })
                .MigrateDbContext<IntegrationEventLogContext>((_, __) => { 
})
                .Run();
        }

         public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)                
                 .UseStartup<Startup>()
                .UseHealthChecks("/hc")
                .UseContentRoot(Directory.GetCurrentDirectory())
                .ConfigureAppConfiguration((builderContext, config) =>
                {
                    config.AddJsonFile("settings.json");
                    config.AddEnvironmentVariables();
                })
                .ConfigureLogging((hostingContext, builder) =>
                {

builder.AddConfiguration(hostingContext.Configuration.GetSection("Logging"));
                        builder.AddConsole();
                        builder.AddDebug();
                })
                 .UseApplicationInsights()
                .Build();
    }



    This is the Error for Autofac dependency.The main Error is Autofac.Core.DependencyResolutionException.How to remove Autofac dependency error from eShop Project/Solution?
  :
Autofac.Core.DependencyResolutionException
  HResult=0x80131500
   Message=An error occurred during the activation of a particular 
 registration. See the inner exception for details. Registration: Activator 
 = HostedServiceExecutor (ReflectionActivator), Services = 
 [Microsoft.AspNetCore.Hosting.Internal.HostedServiceExecutor], Lifetime = 
 Autofac.Core.Lifetime.RootScopeLifetime, Sharing = Shared, Ownership = 
 OwnedByLifetimeScope
  Source=Autofac
  StackTrace:
   at Autofac.Core.Resolving.InstanceLookup.Activate(IEnumerable`1 
 parameters)
   at Autofac.Core.Lifetime.LifetimeScope.GetOrCreateAndShare(Guid id, 
  Func`1 creator)
       at Autofac.Core.Resolving.InstanceLookup.Execute()
    at Autofac.Core.Resolving.ResolveOperation.GetOrCreateInstance 
(ISharingLifetimeScope currentOperationScope, IComponentRegistration 
registration, IEnumerable`1 parameters)
   at Autofac.Core.Resolving.ResolveOperation.Execute(IComponentRegistration 
 registration, IEnumerable`1 parameters)
   at Autofac.ResolutionExtensions.TryResolveService(IComponentContext 
 context, Service service, IEnumerable`1 parameters, Object& instance)
    at Autofac.ResolutionExtensions.ResolveService(IComponentContext 
  context, Service service, IEnumerable`1 parameters)
  at 

  Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions. 
  GetRequiredService(IServiceProvider provider, Type serviceType)
   at 
 Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions. 
 GetReq uiredService[T] (IServiceProvider provider)
   at Microsoft.AspNetCore.Hosting.Internal.WebHost. 
<StartAsync>d__26.MoveNext()
    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
       at System.Runtime.CompilerServices.TaskAwaiter. 
 HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Hosting.WebHostExtensions. 
 <RunAsync>d__5.MoveNext()
    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at 

 System.Runtime.CompilerServices.TaskAwaiter 
.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Hosting.WebHostExtensions. 
<RunAsync>d__4.MoveNext()
    at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
         at System.Runtime.CompilerServices.TaskAwaiter 
 .HandleNonSuccessAndDebuggerNotification(Task task)
    at Microsoft.AspNetCore.Hosting.WebHostExtensions.Run(IWebHost host)
   at Program.Main(String[] args) in 

 Inner Exception 1:
 DependencyResolutionException: An error occurred during the activation of a 
 particular registration. 
 See the inner exception for details. Registration: Activator = 
  IHostedService[] (DelegateActivator),
  Services = [System.Collections.Generic.IEnumerable`1[ 
  [Microsoft.Extensions.Hosting.IHostedService,
   Microsoft.Extensions.Hosting.Abstractions, Version=2.0.0.0, 
  Culture=neutral,
  PublicKeyToken=adb9793829ddae60]]], Lifetime = 
   Autofac.Core.Lifetime.CurrentScopeLifetime, Sharing = None, Ownership = 
  ExternallyOwned

  Inner Exception 2:
  DependencyResolutionException: An error occurred during the activation of 
  a particular registration. 
 See the inner exception for details. Registration: Activator = 
 GracePeriodManagerService (ReflectionActivator),
  Services = [Microsoft.Extensions.Hosting.IHostedService], Lifetime = 
  Autofac.Core.Lifetime.RootScopeLifetime,
   Sharing = Shared, Ownership = OwnedByLifetimeScope

 Inner Exception 3:
  DependencyResolutionException: None of the constructors found with 
  'Autofac.Core.Activators.Reflection.DefaultConstructorFinder' on type 
  'Ordering.API.Infrastructure.HostedServices.GracePeriodManagerService' can 
    be invoked with the available services and parameters:
    Cannot resolve parameter 'BuildingBlocks.EventBus.Abstractions.IEventBus 
   eventBus' of constructor 'Void 

   .ctor(Microsoft.Extensions.Options.IOptions`1[
   Services.Ordering.API.OrderingSettings], 
   BuildingBlocks.EventBus.Abstractions.IEventBus, 

   Microsoft.Extensions.Logging.ILogger`1[Ordering.API.Infrastructure
   .HostedServices.GracePeriodManagerService])'.

This is the Error for Autofac dependency.The main Error is Autofac.Core.DependencyResolutionException.How to remove Autofac dependency error from eShop Project/Solution?