Ninject失敗，NullRef異常，如果有一個屬性訪問接口

Question

我一直在尋找其他相關職位，但我沒有發現任何東西，所以這裏去...

我有一個（超）簡單使用NullReferenceExcption失敗的Ninject測試，我找不到任何有關原因的信息。如果在界面中定義了C＃簡化屬性訪問器，則會發生這種情況，否則就沒關係。 如果我刪除get;組;功能如預期般運作。

我的問題是我只是做一些不應該工作的東西 - 例如，這是否與已棄用的字段注入功能有關？

全體（不及格）的例子很短：

using System; 
using Ninject; 

namespace NinjectIFPropError 
{ 
    public interface IDummy 
    { 
     int Number {get;set;} 
     void Doit(); 
    } 

    public class DummyClass : IDummy 
    { 
     public int Number {get;set;} 

     public void Doit() 
     { 
      Console.WriteLine("Doit"); 
     } 
    } 

    class Program 
    { 
     public static void Main (string[] args) 
     { 
      IKernel kernel = new StandardKernel(); 
      kernel.Bind<IDummy>().To<DummyClass>(); 

      IDummy id = kernel.Get<IDummy>(); 
      id.Doit(); 
     } 
    } 
} 

我使用的是默認的單聲道2.10.5安裝在Ubuntu 11.10。 Ninject是從Ninject.org下載的.Net 4.0的v2.2.1.0。

任何信息，將不勝感激。

/A

我追加的堆棧跟蹤以及（相當長）：

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object 
at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.GetParentDefinition (System.Reflection.MethodInfo method, BindingFlags flags) [0x00000] in <filename unknown>:0 
at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.GetParentDefinition (System.Reflection.PropertyInfo property) [0x00000] in <filename unknown>:0 
at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.IsDefined (System.Reflection.PropertyInfo element, System.Type attributeType, Boolean inherit) [0x00000] in <filename unknown>:0 
at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.HasAttribute (System.Reflection.MemberInfo member, System.Type type) [0x00000] in <filename unknown>:0 
at Ninject.Selection.Heuristics.StandardInjectionHeuristic.ShouldInject (System.Reflection.MemberInfo member) [0x00000] in <filename unknown>:0 
at Ninject.Selection.Selector+<>c__DisplayClass3.<SelectPropertiesForInjection>b__2 (IInjectionHeuristic h) [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable.Any[IInjectionHeuristic] (IEnumerable`1 source, System.Func`2 predicate) [0x00000] in <filename unknown>:0 
at Ninject.Selection.Selector.<SelectPropertiesForInjection>b__1 (System.Reflection.PropertyInfo p) [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable+<CreateWhereIterator>c__Iterator35`1[System.Reflection.PropertyInfo].MoveNext() [0x00000] in <filename unknown>:0 
at System.Collections.Generic.List`1[System.Reflection.PropertyInfo].AddEnumerable (IEnumerable`1 enumerable) [0x00000] in <filename unknown>:0 
at System.Collections.Generic.List`1[System.Reflection.PropertyInfo].AddRange (IEnumerable`1 collection) [0x00000] in <filename unknown>:0 
at Ninject.Selection.Selector.SelectPropertiesForInjection (System.Type type) [0x00000] in <filename unknown>:0 
at Ninject.Planning.Strategies.PropertyReflectionStrategy.Execute (IPlan plan) [0x00000] in <filename unknown>:0 
at Ninject.Planning.Planner+<>c__DisplayClass3.<GetPlan>b__1 (IPlanningStrategy s) [0x00000] in <filename unknown>:0 
at Ninject.Infrastructure.Language.ExtensionsForIEnumerableOfT.Map[IPlanningStrategy] (IEnumerable`1 series, System.Action`1 action) [0x00000] in <filename unknown>:0 
at Ninject.Planning.Planner.GetPlan (System.Type type) [0x00000] in <filename unknown>:0 
at Ninject.Activation.Providers.StandardProvider.Create (IContext context) [0x00000] in <filename unknown>:0 
at Ninject.Activation.Context.Resolve() [0x00000] in <filename unknown>:0 
at Ninject.KernelBase.<Resolve>b__7 (IContext context) [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable+<CreateSelectIterator>c__Iterator27`2[Ninject.Activation.IContext,System.Object].MoveNext() [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable+<CreateCastIterator>c__Iterator17`1[NinjectIFPropError.IDummy].MoveNext() [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable.Single[IDummy] (IEnumerable`1 source, System.Func`2 predicate, Fallback fallback) [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable.Single[IDummy] (IEnumerable`1 source) [0x00000] in <filename unknown>:0 
at Ninject.ResolutionExtensions.Get[IDummy] (IResolutionRoot root, Ninject.Parameters.IParameter[] parameters) [0x00000] in <filename unknown>:0 
at NinjectIFPropError.Program.Main (System.String[] args) [0x00018] in /home/roger/Projects/NinjectIFPropError/Main.cs:38 
[ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object 
at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.GetParentDefinition (System.Reflection.MethodInfo method, BindingFlags flags) [0x00000] in <filename unknown>:0 
at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.GetParentDefinition (System.Reflection.PropertyInfo property) [0x00000] in <filename unknown>:0 
at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.IsDefined (System.Reflection.PropertyInfo element, System.Type attributeType, Boolean inherit) [0x00000] in <filename unknown>:0 
at Ninject.Infrastructure.Language.ExtensionsForMemberInfo.HasAttribute (System.Reflection.MemberInfo member, System.Type type) [0x00000] in <filename unknown>:0 
at Ninject.Selection.Heuristics.StandardInjectionHeuristic.ShouldInject (System.Reflection.MemberInfo member) [0x00000] in <filename unknown>:0 
at Ninject.Selection.Selector+<>c__DisplayClass3.<SelectPropertiesForInjection>b__2 (IInjectionHeuristic h) [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable.Any[IInjectionHeuristic] (IEnumerable`1 source, System.Func`2 predicate) [0x00000] in <filename unknown>:0 
at Ninject.Selection.Selector.<SelectPropertiesForInjection>b__1 (System.Reflection.PropertyInfo p) [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable+<CreateWhereIterator>c__Iterator35`1[System.Reflection.PropertyInfo].MoveNext() [0x00000] in <filename unknown>:0 
at System.Collections.Generic.List`1[System.Reflection.PropertyInfo].AddEnumerable (IEnumerable`1 enumerable) [0x00000] in <filename unknown>:0 
at System.Collections.Generic.List`1[System.Reflection.PropertyInfo].AddRange (IEnumerable`1 collection) [0x00000] in <filename unknown>:0 
at Ninject.Selection.Selector.SelectPropertiesForInjection (System.Type type) [0x00000] in <filename unknown>:0 
at Ninject.Planning.Strategies.PropertyReflectionStrategy.Execute (IPlan plan) [0x00000] in <filename unknown>:0 
at Ninject.Planning.Planner+<>c__DisplayClass3.<GetPlan>b__1 (IPlanningStrategy s) [0x00000] in <filename unknown>:0 
at Ninject.Infrastructure.Language.ExtensionsForIEnumerableOfT.Map[IPlanningStrategy] (IEnumerable`1 series, System.Action`1 action) [0x00000] in <filename unknown>:0 
at Ninject.Planning.Planner.GetPlan (System.Type type) [0x00000] in <filename unknown>:0 
at Ninject.Activation.Providers.StandardProvider.Create (IContext context) [0x00000] in <filename unknown>:0 
at Ninject.Activation.Context.Resolve() [0x00000] in <filename unknown>:0 
at Ninject.KernelBase.<Resolve>b__7 (IContext context) [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable+<CreateSelectIterator>c__Iterator27`2[Ninject.Activation.IContext,System.Object].MoveNext() [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable+<CreateCastIterator>c__Iterator17`1[NinjectIFPropError.IDummy].MoveNext() [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable.Single[IDummy] (IEnumerable`1 source, System.Func`2 predicate, Fallback fallback) [0x00000] in <filename unknown>:0 
at System.Linq.Enumerable.Single[IDummy] (IEnumerable`1 source) [0x00000] in <filename unknown>:0 
at Ninject.ResolutionExtensions.Get[IDummy] (IResolutionRoot root, Ninject.Parameters.IParameter[] parameters) [0x00000] in <filename unknown>:0 
at NinjectIFPropError.Program.Main (System.String[] args) [0x00018] in /home/roger/Projects/NinjectIFPropError/Main.cs:38 

Answer 1

你需要確保在單環境中運行Ninject當您使用單聲道版本。如果您轉到TeamCity build server，則可以獲得Mono 2.0,3.5和4.0版本的工件。請嘗試看看您的問題是否已解決。

Answer 2

對於那些來到這裏從Unity3D應用：

由於@Ian戴維斯回答說，爲單你應該使用單聲道版本。 對於統一，我認爲它應該是單聲道2.0版本。

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