I have one c# project which is using libraries from Ardalis Specification , I need to work with two different DbContext.
So, from Autofac side I need to register generics which will implement IRepository, IReadRepository .With my current code when I should use repository related to one SapScriptDbContext it is throwing me an error “System.ArgumentException: Cannot create a DbSet for ‘CooisHeader’ because this type is not included in the model for the context.”

public class AppEfRepository<T> : RepositoryBase<T>,IReadRepository<T>,IRepository<T> where T : class,IAggregateRoot
{
    public AppEfRepository(ApplicationDbContext context):base(context)
    {
        
    }
}

public class SapScriptDbContext : DbContext
{
    public SapScriptDbContext(DbContextOptions<SapScriptDbContext> options):base(options)
    {
        
    }
    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<CooisHeader>().ToTable("CooisHeader");
        modelBuilder.Entity<CooisComponent>().ToTable(nameof(CooisComponent));

    }

    public DbSet<CooisHeader> CooisHeader => Set<CooisHeader>();
    public DbSet<CooisComponent> CooisComponent => Set<CooisComponent>();
}

public class AutofacInfrastructureModule : Module
{
    private readonly List<Assembly> _assemblies = new List<Assembly>();
    public AutofacInfrastructureModule(Assembly? callingAssembly = null)
    {
        AddToAssembliesifNotNull(callingAssembly);
    }

    private void AddToAssembliesifNotNull(Assembly callingAssembly)
    {
        if (callingAssembly != null)
        {
            _assemblies.Add(callingAssembly);
        }
    }

    protected override void Load(ContainerBuilder builder)
    {
        LoadAssemblies();
        RegisterEf(builder);
    }

    private void LoadAssemblies()
    {
        var coreAssembly = Assembly.GetAssembly(typeof(CooisHeader));
        var appCore = Assembly.GetAssembly((typeof(Cut)));
        var infrastructureAssembly = Assembly.GetAssembly(typeof(AutofacInfrastructureModule));
        AddToAssembliesifNotNull(coreAssembly);
        AddToAssembliesifNotNull(appCore);
        AddToAssembliesifNotNull(infrastructureAssembly);
    }

    private void RegisterEf(ContainerBuilder builder)
    {
        builder.RegisterGeneric(typeof(SapScriptEfRepository<>))
            .As(typeof(IRepository<>))
            .As(typeof(IReadRepository<>))
            .InstancePerLifetimeScope();
        //If I comment this bellow app is working and no error
        builder.RegisterGeneric(typeof(AppEfRepository<>))
            .As(typeof(IRepository<>))
            .As(typeof(IReadRepository<>))
            .InstancePerLifetimeScope();

    }
}

From Program.cs

var connectionString = builder.Configuration.GetConnectionString("SapScriptConnection");
         var defaultConnectionString = builder.Configuration.GetConnectionString("DefaultConnection");
           builder.Services.AddDbContext<SapScriptDbContext>(cfg => cfg.UseSqlServer(connectionString));
           builder.Services.AddDbContext<ApplicationDbContext>(cfg => cfg.UseSqlServer(defaultConnectionString));

I’m trying to resolve DI with autofac where I can use generic repository for multiple dbcontexts