We are getting below error when try to get the object by using ServiceLocator.Current.GetInstance() method.
Activation error occured while trying to get instance of type IXXXXXController, key ""
at Microsoft.Internal.Collections.WeakReferenceCollection1.<CleanupDeadReferences>b__0(WeakReference w)
at System.Collections.Generic.List1.RemoveAll(Predicate1 match)
at Microsoft.Internal.Collections.WeakReferenceCollection1.CleanupDeadReferences()
at Microsoft.Internal.Collections.WeakReferenceCollection`1.Add(T item)
at System.ComponentModel.Composition.Hosting.ImportEngine.StartSatisfyingImports(PartManager partManager, AtomicComposition atomicComposition)
at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImports(PartManager partManager, ComposablePart part, Boolean shouldTrackImports)
at System.ComponentModel.Composition.Hosting.ImportEngine.SatisfyImports(ComposablePart part)
at System.ComponentModel.Composition.Hosting.CompositionServices.GetExportedValueFromComposedPart(ImportEngine engine, ComposablePart part,
ExportDefinition definition)
at System.ComponentModel.Composition.Hosting.CatalogExportProvider.GetExportedValue(CatalogPart part, ExportDefinition export, Boolean isSharedPart)
at System.ComponentModel.Composition.Hosting.CatalogExportProvider.CatalogExport.GetExportedValueCore()
at System.ComponentModel.Composition.Primitives.Export.get_Value()
at System.ComponentModel.Composition.ReflectionModel.ImportingItem.Cast(Type type, Export export)
at System.ComponentModel.Composition.ReflectionModel.ImportingItem.CastSingleExportToImportType(Type type, Export export)
at System.ComponentModel.Composition.ReflectionModel.ImportingItem.CastExportsToSingleImportType(Export[] exports)
at System.ComponentModel.Composition.ReflectionModel.ImportingItem.CastExportsToImportType(Export[] exports)
at System.ComponentModel.Composition.ReflectionModel.ReflectionComposablePart.SetImport(ImportingItem item, Export[] exports)
at System.ComponentModel.Composition.ReflectionModel.ReflectionComposablePart.SetImport(ImportDefinition definition, IEnumerable1 exports)
at System.ComponentModel.Composition.Hosting.ImportEngine.PartManager.TrySetImport(ImportDefinition import, Export[] exports)
at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImportSubset(PartManager partManager, IEnumerable1 imports, AtomicComposition
atomicComposition) at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImportsStateMachine(PartManager partManager, ComposablePart part) at System.ComponentModel.Composition.Hosting.ImportEngine.TrySatisfyImports(PartManager partManager, ComposablePart part, Boolean shouldTrackImports) at System.ComponentModel.Composition.Hosting.ImportEngine.SatisfyImports(ComposablePart part) at System.ComponentModel.Composition.Hosting.CompositionServices.GetExportedValueFromComposedPart(ImportEngine engine, ComposablePart part,
ExportDefinition definition)
at System.ComponentModel.Composition.Hosting.CatalogExportProvider.GetExportedValue(CatalogPart part, ExportDefinition export, Boolean isSharedPart)
at System.ComponentModel.Composition.Hosting.CatalogExportProvider.CatalogExport.GetExportedValueCore()
at System.ComponentModel.Composition.Primitives.Export.get_Value()
at System.ComponentModel.Composition.ExportServices.GetCastedExportedValue[T](Export export)
at System.ComponentModel.Composition.ExportServices.<>c__DisplayClass102.<CreateSemiStronglyTypedLazy>b__c()
at System.Lazy1.CreateValue()
at System.Lazy1.LazyInitValue()
at System.Lazy1.get_Value()
at Microsoft.Practices.Prism.MefExtensions.MefServiceLocatorAdapter.DoGetInstance(Type serviceType, String key) in c:\release\WorkingDir
\PrismLibraryBuild\PrismLibrary\Desktop\Prism.MefExtensions\MefServiceLocatorAdapter.cs:line 73 at Microsoft.Practices.ServiceLocation.ServiceLocatorImplBase.GetInstance(Type serviceType, String key)
We are setting up the container in class (inside override void ConfigureAggregateCatalog method) derived from MefBootstrapper like below
this.AggregateCatalog.Catalogs.Add(new AssemblyCatalog(typeof(ClassName).Assembly));
We have observed that this work fine for some time but we start getting the error when we leave the application ideal for few hours. Please suggest what is causing this error and fix for it.
Thanks
