Question

Я получаю следующую ошибку при попытке инициализации модуля с использованием Unity и Prism. DLL найдена

return new DirectoryModuleCatalog() { ModulePath = @".\Modules" };

dll найдена и имя найдено

  #region Constructors

    public AdminModule(
        IUnityContainer container,
        IScreenFactoryRegistry screenFactoryRegistry,
        IEventAggregator eventAggregator,
        IBusyService busyService
        )
        : base(container, screenFactoryRegistry)
    {
        this.EventAggregator = eventAggregator;
        this.BusyService = busyService;
    }

    #endregion

    #region Properties

    protected IEventAggregator EventAggregator { get; set; }
    protected IBusyService BusyService { get; set; }

    #endregion

    public override void Initialize()
    {
        base.Initialize();
    }

    #region Register Screen Factories

    protected override void RegisterScreenFactories()
    {
        this.ScreenFactoryRegistry.Register(ScreenKeyType.ApplicationAdmin, typeof(AdminScreenFactory));
    }

    #endregion

    #region Register Views and Various Services

    protected override void RegisterViewsAndServices()
    {
        //View Models
        this.Container.RegisterType<IAdminViewModel, AdminViewModel>();

               }

    #endregion

код, который выдает ошибку:

namespace Microsoft.Practices.Composite.Modularity
    protected virtual IModule CreateModule(string typeName)
        {
            Type moduleType = Type.GetType(typeName);
            if (moduleType == null)
            {
                throw new ModuleInitializeException(string.Format(CultureInfo.CurrentCulture, Properties.Resources.FailedToGetType, typeName));
            }

            return (IModule)this.serviceLocator.GetInstance(moduleType); <-- Error Here
        }

Может ли кто-нибудь мне помочь

Журнал ошибок ниже:

Общая информация

Additional Info:
ExceptionManager.MachineName: xxxxx
ExceptionManager.TimeStamp: 22/02/2010 10:16:55 AM
ExceptionManager.FullName: Microsoft.ApplicationBlocks.ExceptionManagement, Version=1.0.3591.32238, Culture=neutral, PublicKeyToken=null
ExceptionManager.AppDomainName: Infinity.vshost.exe
ExceptionManager.ThreadIdentity: 
ExceptionManager.WindowsIdentity: xxxxx

1) Информация об исключении

Exception Type: Microsoft.Practices.Composite.Modularity.ModuleInitializeException
ModuleName: AdminModule
Message: An exception occurred while initializing module 'AdminModule'. 
    - The exception message was: Activation error occured while trying to get instance of type AdminModule, key ""
    Check the InnerException property of the exception for more information. If the exception occurred 
    while creating an object in a DI container, you can exception.GetRootException() to help locate the 
    root cause of the problem. 
Data: System.Collections.ListDictionaryInternal
TargetSite: Void HandleModuleInitializationError(Microsoft.Practices.Composite.Modularity.ModuleInfo, System.String, System.Exception)
HelpLink: NULL
Source: Microsoft.Practices.Composite

Информация о StackTrace

  at Microsoft.Practices.Composite.Modularity.ModuleInitializer.HandleModuleInitializationError(ModuleInfo moduleInfo, String assemblyName, Exception exception)
   at Microsoft.Practices.Composite.Modularity.ModuleInitializer.Initialize(ModuleInfo moduleInfo)
   at Microsoft.Practices.Composite.Modularity.ModuleManager.InitializeModule(ModuleInfo moduleInfo)
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModulesThatAreReadyForLoad()
   at Microsoft.Practices.Composite.Modularity.ModuleManager.OnModuleTypeLoaded(ModuleInfo typeLoadedModuleInfo, Exception error)
   at Microsoft.Practices.Composite.Modularity.FileModuleTypeLoader.BeginLoadModuleType(ModuleInfo moduleInfo, ModuleTypeLoadedCallback callback)
   at Microsoft.Practices.Composite.Modularity.ModuleManager.BeginRetrievingModule(ModuleInfo moduleInfo)
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModuleTypes(IEnumerable`1 moduleInfos)
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModulesWhenAvailable()
   at Microsoft.Practices.Composite.Modularity.ModuleManager.Run()
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.InitializeModules()
   at Infinity.Bootstrapper.InitializeModules() in D:\Projects\dotNet\Infinity\source\Inifinty\Infinity\Application Modules\BootStrapper.cs:line 75
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.Run(Boolean runWithDefaultConfiguration)
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.Run()
   at Infinity.App.Application_Startup(Object sender, StartupEventArgs e) in D:\Projects\dotNet\Infinity\source\Inifinty\Infinity\App.xaml.cs:line 37
   at System.Windows.Application.OnStartup(StartupEventArgs e)
   at System.Windows.Application.<.ctor>b__0(Object unused)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)

2) Информация об исключении

Exception Type: Microsoft.Practices.ServiceLocation.ActivationException
Message: Activation error occured while trying to get instance of type AdminModule, key ""
Data: System.Collections.ListDictionaryInternal
TargetSite: System.Object GetInstance(System.Type, System.String)
HelpLink: NULL
Source: Microsoft.Practices.ServiceLocation

Информация о StackTrace

 at Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type serviceType, String key)
   at Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type serviceType)
   at Microsoft.Practices.Composite.Modularity.ModuleInitializer.CreateModule(String typeName)
   at Microsoft.Practices.Composite.Modularity.ModuleInitializer.Initialize(ModuleInfo moduleInfo)

3) Информация об исключении

Exception Type: Microsoft.Practices.Unity.ResolutionFailedException
TypeRequested: AdminModule
NameRequested: NULL
Message: Resolution of the dependency failed, type = "Infinity.Modules.Admin.AdminModule", name = "". Exception message is: The current build operation (build key Build Key[Infinity.Modules.Admin.AdminModule, null]) failed: The parameter screenFactoryRegistry could not be resolved when attempting to call constructor Infinity.Modules.Admin.AdminModule(Microsoft.Practices.Unity.IUnityContainer container, PhoenixIT.IScreenFactoryRegistry screenFactoryRegistry, Microsoft.Practices.Composite.Events.IEventAggregator eventAggregator, PhoenixIT.IBusyService busyService). (Strategy type BuildPlanStrategy, index 3)
Data: System.Collections.ListDictionaryInternal
TargetSite: System.Object DoBuildUp(System.Type, System.Object, System.String)
HelpLink: NULL
Source: Microsoft.Practices.Unity

StackTrace Information
*********************************************
   at Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name)
   at Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, String name)
   at Microsoft.Practices.Unity.UnityContainer.Resolve(Type t, String name)
   at Microsoft.Practices.Composite.UnityExtensions.UnityServiceLocatorAdapter.DoGetInstance(Type serviceType, String key)
   at Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type serviceType, String key)

4) Информация об исключении

Exception Type: Microsoft.Practices.ObjectBuilder2.BuildFailedException
ExecutingStrategyTypeName: BuildPlanStrategy
ExecutingStrategyIndex: 3
BuildKey: Build Key[Infinity.Modules.Admin.AdminModule, null]
Message: The current build operation (build key Build Key[Infinity.Modules.Admin.AdminModule, null]) failed: The parameter screenFactoryRegistry could not be resolved when attempting to call constructor Infinity.Modules.Admin.AdminModule(Microsoft.Practices.Unity.IUnityContainer container, PhoenixIT.IScreenFactoryRegistry screenFactoryRegistry, Microsoft.Practices.Composite.Events.IEventAggregator eventAggregator, PhoenixIT.IBusyService busyService). (Strategy type BuildPlanStrategy, index 3)
Data: System.Collections.ListDictionaryInternal
TargetSite: System.Object ExecuteBuildUp(Microsoft.Practices.ObjectBuilder2.IBuilderContext)
HelpLink: NULL
Source: Microsoft.Practices.ObjectBuilder2

Информация StackTrace

 at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context)
   at Microsoft.Practices.ObjectBuilder2.Builder.BuildUp(IReadWriteLocator locator, ILifetimeContainer lifetime, IPolicyList policies, IStrategyChain strategies, Object buildKey, Object existing)
   at Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name)

5) Информация об исключении

Exception Type: System.InvalidOperationException
Message: The parameter screenFactoryRegistry could not be resolved when attempting to call constructor Infinity.Modules.Admin.AdminModule(Microsoft.Practices.Unity.IUnityContainer container, PhoenixIT.IScreenFactoryRegistry screenFactoryRegistry, Microsoft.Practices.Composite.Events.IEventAggregator eventAggregator, PhoenixIT.IBusyService busyService).
Data: System.Collections.ListDictionaryInternal
TargetSite: Void ThrowForResolutionFailed(System.Exception, System.String, System.String, Microsoft.Practices.ObjectBuilder2.IBuilderContext)
HelpLink: NULL
Source: Microsoft.Practices.ObjectBuilder2

Информация StackTrace

at Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.ThrowForResolutionFailed(Exception inner, String parameterName, String constructorSignature, IBuilderContext context)
   at BuildUp_Infinity.Modules.Admin.AdminModule(IBuilderContext )
   at Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context)
   at Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context)
   at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context)

6) Информация об исключении

Exception Type: Microsoft.Practices.ObjectBuilder2.BuildFailedException
ExecutingStrategyTypeName: BuildPlanStrategy
ExecutingStrategyIndex: 3
BuildKey: Build Key[PhoenixIT.IScreenFactoryRegistry, null]
Message: The current build operation (build key Build Key[PhoenixIT.IScreenFactoryRegistry, null]) failed: The current type, PhoenixIT.IScreenFactoryRegistry, is an interface and cannot be constructed. Are you missing a type mapping? (Strategy type BuildPlanStrategy, index 3)
Data: System.Collections.ListDictionaryInternal
TargetSite: System.Object ExecuteBuildUp(Microsoft.Practices.ObjectBuilder2.IBuilderContext)
HelpLink: NULL
Source: Microsoft.Practices.ObjectBuilder2

Информация о StackTrace

 at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context)
   at Microsoft.Practices.Unity.ObjectBuilder.NamedTypeDependencyResolverPolicy.Resolve(IBuilderContext context)
   at BuildUp_Infinity.Modules.Admin.AdminModule(IBuilderContext )

7) Информация об исключении

Exception Type: System.InvalidOperationException
Message: The current type, PhoenixIT.IScreenFactoryRegistry, is an interface and cannot be constructed. Are you missing a type mapping?
Data: System.Collections.ListDictionaryInternal
TargetSite: Void ThrowForAttemptingToConstructInterface(Microsoft.Practices.ObjectBuilder2.IBuilderContext)
HelpLink: NULL
Source: Microsoft.Practices.ObjectBuilder2

Информация о StackTrace

  at Microsoft.Practices.ObjectBuilder2.DynamicMethodConstructorStrategy.ThrowForAttemptingToConstructInterface(IBuilderContext context)
   at BuildUp_PhoenixIT.IScreenFactoryRegistry(IBuilderContext )
   at Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context)
   at Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context)
   at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context)

Для получения дополнительной информации см. Центр справки и поддержки по http://go.microsoft.com/fwlink/events.asp.

Anderson Imes · Answer 1 · 22 февраля 2010

Самым внутренним исключением является проблема.

Типу вашего модуля необходим параметр с именем "screenFactoryRegistry" типа IScreenFactoryRegistry. Поскольку IScreenFactoryRegistry является интерфейсом, и вы, очевидно, не сделали Register в контейнере для сопоставления этого интерфейса с конкретным типом, контейнер Unity вызывает исключение.

Чтобы решить эту проблему, вам нужно отобразить этот тип в Unity, возможно, в методе ConfigureContainer вашего загрузчика:

Container.RegisterType<IScreenFactoryRegistry, MyScreenFactoryRegistryImplementation>();

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