在 Visual Studio 2012 中启动分析器时，我始终收到来自 Ninject 的 InvalidProgramException。我在 ASP.NET Web 应用程序上使用检测。启动后，分析器通过 VSEnterpriseHelper.axd 将自己的功能添加到应用程序。当这个模块被初始化时，ninject 就会崩溃。我收到一条错误消息：
"The web site could not be configured correctly; getting ASP.NET process information failed. Requesting 'http://localhost:7777/VSEnterpriseHelper.axd' returned an error: The remote server returned an error: (500) Internal Server Error."
在 Windows 事件查看器中可以观察到 500 内部服务器错误：
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 2013-10-31 11:26:11
Event time (UTC): 2013-10-31 10:26:11
Event ID: 8b04f14a2d78430d995bb8d4d6c61728
Event sequence: 4
Event occurrence: 1
Event detail code: 0
Application information:
Application domain: /LM/W3SVC/2/ROOT-1-130276887605936349
Trust level: Full
Application Virtual Path: /
Application Path: C:\TFS\MyCompany Projects\Main\www\
Machine name: JEGO
Process information:
Process ID: 7876
Process name: w3wp.exe
Account name: MyCompany\august
Exception information:
Exception type: InvalidProgramException
Exception message: Common Language Runtime detected an invalid program.
at System.Runtime.CompilerServices.RuntimeHelpers._CompileMethod(IRuntimeMethodInfo method)
at System.Reflection.Emit.DynamicMethod.CreateDelegate(Type delegateType)
at Ninject.Injection.DynamicMethodInjectorFactory.Create(ConstructorInfo constructor)
at Ninject.Planning.Strategies.ConstructorReflectionStrategy.Execute(IPlan plan)
at Ninject.Infrastructure.Language.ExtensionsForIEnumerableOfT.Map[T](IEnumerable`1 series, Action`1 action)
at Ninject.Planning.Planner.CreateNewPlan(Type type)
at Ninject.Planning.Planner.GetPlan(Type type)
at Ninject.Activation.Context.Resolve()
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
at Ninject.Activation.Providers.StandardProvider.Create(IContext context)
at Ninject.Activation.Context.Resolve()
at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
at System.Linq.Enumerable.<CastIterator>d__b1`1.MoveNext()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at Ninject.Web.Common.NinjectHttpModule.Init(HttpApplication context)
at System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers)
at System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context)
at System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context)
at System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)
Request information:
Request URL: http://localhost:7777/VSEnterpriseHelper.axd
Request path: /VSEnterpriseHelper.axd
User host address: ::1
User:
Is authenticated: False
Authentication Type:
Thread account name: MyCompany\august
Thread information:
Thread ID: 7
Thread account name: MyCompany\august
Is impersonating: False
Stack trace: at System.Runtime.CompilerServices.RuntimeHelpers._CompileMethod(IRuntimeMethodInfo method)
at System.Reflection.Emit.DynamicMethod.CreateDelegate(Type delegateType)
at Ninject.Injection.DynamicMethodInjectorFactory.Create(ConstructorInfo constructor)
at Ninject.Planning.Strategies.ConstructorReflectionStrategy.Execute(IPlan plan)
at Ninject.Infrastructure.Language.ExtensionsForIEnumerableOfT.Map[T](IEnumerable`1 series, Action`1 action)
at Ninject.Planning.Planner.CreateNewPlan(Type type)
at Ninject.Planning.Planner.GetPlan(Type type)
at Ninject.Activation.Context.Resolve()
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
at Ninject.Activation.Providers.StandardProvider.Create(IContext context)
at Ninject.Activation.Context.Resolve()
at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
at System.Linq.Enumerable.<CastIterator>d__b1`1.MoveNext()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at Ninject.Web.Common.NinjectHttpModule.Init(HttpApplication context)
at System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers)
at System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context)
at System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context)
at System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext)
在上面的堆栈跟踪中，构造函数参数为：
Ninject.Injection.DynamicMethodInjectorFactory.Create(ConstructorInfo constructor)
包含 System.Func< IKernel > 的构造函数。
这是我们使用的启动配置（Ninject.Web.Common）：
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.Http;
using MyCompany.Classlib.Misc;
using Microsoft.Web.Infrastructure.DynamicModuleHelper;
using Ninject;
using Ninject.Web.Common;
using MyCompany;
[assembly: PreApplicationStartMethod( typeof( NinjectWebCommon ), "Start" )]
namespace MyCompany
{
public static class NinjectWebCommon
{
private static readonly Bootstrapper __bootstrapper = new Bootstrapper();
/// <summary>
/// Starts the application
/// </summary>
public static void Start()
{
DynamicModuleUtility.RegisterModule( typeof( Ninject.Web.NinjectHttpModule ) );
DynamicModuleUtility.RegisterModule( typeof( OnePerRequestHttpModule ) );
DynamicModuleUtility.RegisterModule( typeof( NinjectHttpModule ) );
__bootstrapper.Initialize( CreateKernel );
}
/// <summary>
/// Stops the application.
/// </summary>
public static void Stop()
{
__bootstrapper.ShutDown();
}
/// <summary>
/// Creates the kernel that will manage your application.
/// </summary>
/// <returns>The created kernel.</returns>
private static IKernel CreateKernel()
{
var kernel = new StandardKernel();
kernel.Bind<Func<IKernel>>().ToMethod( ctx => () => new Bootstrapper().Kernel );
kernel.Bind<IHttpModule>().To<HttpApplicationInitializationHttpModule>();
RegisterServices( kernel );
// Setup Ninject with DependencyResolver. Enables constructor injection in controller classes in the IntegrationApi (WebAPI).
GlobalConfiguration.Configuration.DependencyResolver = new NinjectDependencyResolver( kernel );
return kernel;
}
/// <summary>
/// Load your modules or register your services here!
/// </summary>
/// <param name="kernel">The kernel.</param>
private static void RegisterServices( IKernel kernel )
{
Kernel.Initialize( kernel );
Module.Initialize( kernel );
}
}
}
值得注意的是，如果该行：
var kernel = new StandardKernel();
替换为：
var kernel = new StandardKernel( new NinjectSettings { UseReflectionBasedInjection = true } );
一切正常。但这似乎不是正确的解决方案，因为代码生成速度更快并且是默认设置。
有谁知道如何以仍然允许我们使用更快的基于代码生成的注入方法的方式修复 InvalidProgramException？