C# MediatR Instanceate命令处理程序

我不知道是否有人曾经有过这个问题。 我正在尝试实例化一个类并获取此错误

无法从根目录解析作用域服务'System.IServiceProvider' 提供者。”

我甚至从MediatR下载源代码进行调试，并试图理解这个问题，但我没有找到任何解决方案。 任何帮助都将不胜感激，因为我陷入困境，无法在SO或谷歌上找到任何解决方案 这是该类的声明

public class UserAditionalDataHandler
    : BaseDbContextRequestHandler<UserAditionalDataCommand,
        UserAditionalDataAdded, SecuritySupportDbContext> 
{ 
    public UserAditionalDataHandler(
        IJsonStringLocalizer stringLocalizer, 
        ILogger logger,
        IMapper mapper,
        IMediator mediator, 
        IDatabaseContextProviderFactory databaseFactory)
    : base(
        stringLocalizer,
        logger,
        mapper,
        mediator,
        databaseFactory) { } 
}

public类UserAditionalDataHandler
：BaseDbContextRequestHandler
{ 
公共用户AditionalDataHandler(
IJsonStringLocalizer stringLocalizer，
ILogger记录器，
IMapper映射器，
调解人，
IDatabaseContextProviderFactory数据库工厂）
：基本(
定位器，
记录器，
制图员，
调解人，
数据库工厂{}
}

基类继承自

IRequestHandler

这是注册：

public static IServiceCollection AddServiceMediatR(
    this IServiceCollection services,
    Func<IEnumerable<Assembly>> InjectAssemblies,
    Func<IServiceCollection, IServiceCollection>
        InjectMediatRDecorators)
{
    var assemblies = InjectAssemblies()
        .Where(x => x.FullName.Contains(
            "CommandsHandlers",
            StringComparison.OrdinalIgnoreCase))
        .ToArray();

    if (assemblies.Length > 0)
    {
        services.AddMediatR(
            options => options.AsScoped(), assemblies);
        InjectMediatRDecorators(services);
    }

    return services;
}

---

公共静态IServiceCollection AddServiceMediatR(
这是电子收款服务，
Func程序集，
Func
注射剂（修饰剂）
{
var assembles=injectassembles（）
。其中（x=>x.FullName.Contains(
“指挥官”，
StringComparison.Ordinalingorecase）
.ToArray（）；
如果（assemblies.Length>0）
{
services.AddMediatR(
options=>options.AsScoped（），程序集）；
装饰师（服务）；
}
返回服务；
}

这是异常的完整堆栈跟踪

at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteValidator.ValidateResolution(Type serviceType, IServiceScope scope, IServiceScope rootScope)
at Microsoft.Extensions.DependencyInjection.ServiceProvider.Microsoft.Extensions.DependencyInjection.ServiceLookup.IServiceProviderEngineCallback.OnResolve(Type serviceType, IServiceScope scope)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService(Type serviceType, ServiceProviderEngineScope serviceProviderEngineScope)
at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
at Microsoft.Extensions.Options.OptionsBuilder1.<>c__DisplayClass9_01.<Configure>b__0(IServiceProvider sp)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitDisposeCache(ServiceCallSite transientCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitIEnumerable(IEnumerableCallSite enumerableCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitNoCache(ServiceCallSite callSite, TArgument argument)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitDisposeCache(ServiceCallSite transientCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.ResolveService(ServiceCallSite callSite, RuntimeResolverContext context, RuntimeResolverLock lockType, ServiceProviderEngineScope serviceProviderEngine)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite callSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass1_0.b__0(ServiceProviderEngineScope scope)
at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
at Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions.<>c.b__12_2(IServiceProvider sp)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.ResolveService(ServiceCallSite callSite, RuntimeResolverContext context, RuntimeResolverLock lockType, ServiceProviderEngineScope serviceProviderEngine)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitRootCache(ServiceCallSite callSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
at Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions.<>c.<AddAutoMapperClasses>b__12_3(IServiceProvider sp)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory(FactoryCallSite factoryCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitDisposeCache(ServiceCallSite transientCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite constructorCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitDisposeCache(ServiceCallSite transientCallSite, RuntimeResolverContext context)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite(ServiceCallSite callSite, TArgument argument)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c__DisplayClass1_0.<RealizeService>b__0(ServiceProviderEngineScope scope)
at MediatR.ServiceFactoryExtensions.GetInstance[T](ServiceFactory factory) in C:\Repos\W\src\MediatR\ServiceFactory.cs:line 16
at MediatR.Wrappers.RequestHandlerBase.GetHandler[THandler](ServiceFactory factory) in C:\Repos\W\src\MediatR\Wrappers\RequestHandlerWrapper.cs:line 20

位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteValidator.ValidateResolution（类型serviceType，IServiceScope范围，IServiceScope根范围）
位于Microsoft.Extensions.DependencyInjection.ServiceProvider.Microsoft.Extensions.DependencyInjection.ServiceLookup.IServiceProviderEngeCallback.OnResolve（类型serviceType，IServiceScope范围）
在Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngine.GetService（输入serviceType，ServiceProviderEngineScope ServiceProviderEngineScope）
位于Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService（IServiceProvider提供程序，键入serviceType）
位于Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T]（IServiceProvider提供程序）
在Microsoft.Extensions.Options.Options构建器1.c_uuu显示类9_01.b_uu0（IServiceProvider sp）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory（FactoryCallSite FactoryCallSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitDisposeCache（ServiceCallSite transientCallSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite（ServiceCallSite callSite，Target参数）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitIEnumerable（IEnumerableCallSite enumerableCallSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitNoCache（ServiceCallSite callSite，Target参数）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite（ServiceCallSite callSite，Target参数）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor（ConstructorCallSite ConstructorCallSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitDisposeCache（ServiceCallSite transientCallSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite（ServiceCallSite callSite，Target参数）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor（ConstructorCallSite ConstructorCallSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.ResolveService（ServiceCallSite callSite、RuntimeResolverContext上下文、RuntimeResolverLockType、ServiceProviderEngineScope serviceProviderEngine）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitrotCache（ServiceCallSite callSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite（ServiceCallSite callSite，Target参数）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve（ServiceCallSite callSite，ServiceProviderEngineScope作用域）
在Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.c__DisplayClass1_0.b__0（ServiceProviderEngineScope作用域）
位于Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService（IServiceProvider提供程序，键入serviceType）
位于Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T]（IServiceProvider提供程序）
在Microsoft.Extensions.DependencyInjection.ServiceCollectionExtensions.c.b_uu12_2（iSeries虚拟Provider sp）上
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitFactory（FactoryCallSite FactoryCallSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.ResolveService（ServiceCallSite callSite、RuntimeResolverContext上下文、RuntimeResolverLockType、ServiceProviderEngineScope serviceProviderEngine）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitrotCache（ServiceCallSite callSite，RuntimeResolverContext上下文）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor2.VisitCallSite（ServiceCallSite callSite，Target参数）
位于Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeRe