打開Windows工作流程活動時出現異常

我剛剛開始使用Windows工作流程基礎，但每當我在Visual Studio 2013中雙擊某個活動時，都希望設計師出現以下異常。打開Windows工作流程活動時出現異常

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information. 
    at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module) 
    at System.Reflection.RuntimeModule.GetTypes() 
    at System.Reflection.Assembly.GetTypes() 
    at System.ComponentModel.Composition.Hosting.AssemblyCatalog.get_InnerCatalog() 
    at System.ComponentModel.Composition.Hosting.AssemblyCatalog.GetExports(ImportDefinition definition) 
    at System.ComponentModel.Composition.Hosting.DirectoryCatalog.<>c__DisplayClass3.<GetExports>b__2(ComposablePartCatalog catalog) 
    at System.Linq.Enumerable.<SelectManyIterator>d__14`2.MoveNext() 
    at System.ComponentModel.Composition.Hosting.CatalogExportProvider.InternalGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition) 
    at System.ComponentModel.Composition.Hosting.CatalogExportProvider.InnerCatalogExportProvider.GetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports) 
    at System.ComponentModel.Composition.Hosting.CatalogExportProvider.GetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports) 
    at System.ComponentModel.Composition.Hosting.AggregateExportProvider.GetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports) 
    at System.ComponentModel.Composition.Hosting.CompositionContainer.GetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.TryGetExportsCore(ImportDefinition definition, AtomicComposition atomicComposition, IEnumerable`1& exports) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.GetExports(ImportDefinition definition, AtomicComposition atomicComposition) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportsCore(Type type, Type metadataViewType, String contractName, ImportCardinality cardinality) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportedValueCore[T](String contractName, ImportCardinality cardinality) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportedValueOrDefault[T](String contractName) 
    at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportedValueOrDefault[T]() 
    at Microsoft.VisualStudio.Activities.WorkflowDesignerExtensionManager.InternalGetExtension[T]()

任何想法如何解決這個問題？

感謝

來源

2014-02-27 David Kethel

我不知道原因，但我建議你看看異常消息中提到的屬性：LoaderExceptions。因此，放置一個斷點來檢查異常並深入到LoadExceptions。這是一個集合，據我記憶和集合中，你會發現一個或多個你的例外的原因。也許這會給你你需要的細節。如果不是，你可以在這裏發佈。 –

我更新了我的視覺工作室，並在安裝既包括的LightSwitch和Microsoft Office開發工具和固定它。

來源

2014-03-02 22:59:34

你的意思是LightSwitch擴展和MS Office開發人員擴展權限？ –

打開Windows工作流程活動時出現異常

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