我正在使用一个.Net WinForms应用程序，该应用程序旨在从MongoDB收集记录并将记录插入到SQL Server数据库中。
我下面得到的错误在Application.Run（...）中标记
系统操作无效异常：'无法从根提供程序解析'FixSqlChatHistory.WinForm.MongoReader'，因为它需要作用域服务'FixSqlChatHistory.DataContext. MongoToSqlContext ''
我使用的代码是

static void Main()
{
    Application.SetHighDpiMode(HighDpiMode.SystemAware);
    Application.EnableVisualStyles();
    Application.SetCompatibleTextRenderingDefault(false);

    var host = CreateHostBuilder().Build();
    ServiceProvider = host.Services;

    Application.Run(ServiceProvider.GetRequiredService<MongoReader>());
}

public static IServiceProvider ServiceProvider { get; private set; }
static IHostBuilder CreateHostBuilder()
{
    var assemblies = AppDomain.CurrentDomain.GetAssemblies()
        .Where(x => x.GetName().Name.Contains("FixSqlHistory"));

    var builder = new ConfigurationBuilder()
        .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);
    Configuration = builder.Build();

    return Host.CreateDefaultBuilder()
        .ConfigureServices((context, services) => {
            services.AddScoped<IMongoReader, MongoService>();
            services.AddScoped<IChatActivityReader, ChatDataFixService>();
            services.AddScoped<IChatActivityWriter, ChatDataFixService>();
            services.AddAutoMapper(assemblies);
            
            services.AddDbContext<MongoToSqlContext>(options => options.
                UseSqlServer(Configuration.GetConnectionString("DefaultConnection")))
            services.AddScoped<MongoReader>();

        });
}

MongoReader（Form）的结构如下

public MongoReader(
    MongoToSqlContext databaseContext,
    IChatActivityReader chatActivityReader,
    IChatActivityWriter chatActivityWriter,
    IMongoReader mongoReader)
{
    _databaseContext = databaseContext;
    _chatActivityReader = chatActivityReader;
    _chatActivityWriter = chatActivityWriter;
    _mongoReader = mongoReader;
    InitializeComponent();
}

自从我创建WinForms应用程序以来已经很长时间了，而且是第一次在IdeNet6中创建，所以我希望能在我出错的地方得到一些帮助。
我已经看过这里，这似乎是一个类似的问题，但我设置与AddScoped作为这篇文章建议
Cannot resolve 'ServiceBusConsumer' from root provider because it requires scoped service DbContext