C# 简单注入器Web Api控制器构造函数注入失败

尝试实例化注入的控制器时，我的Web Api应用程序失败。我用的是简单的注射器。引导喷油器如下所示：

[assembly: WebActivator.PostApplicationStartMethod(typeof(SimpleInjectorWebApiInitializer), "Initialize")]

namespace WebApi
{
    using System.Web.Http;
    using SimpleInjector;
    using SimpleInjector.Integration.WebApi;

    public static class SimpleInjectorWebApiInitializer
    {
        public static void Initialize()
        {                
            var container = new Container();
            InitializeContainer(container);
            container.RegisterWebApiControllers(GlobalConfiguration.Configuration);
            container.Verify();

            GlobalConfiguration.Configuration.DependencyResolver = new SimpleInjectorWebApiDependencyResolver(container);
        }

        private static void InitializeContainer(Container container)
        {
            container.RegisterWebApiRequest<ISomething, Something>();
        }
    }
}

我经常遇到的错误是：

<Error>
    <Message>An error has occurred.</Message>
    <ExceptionMessage>
    An error occurred when trying to create a controller of type 'SomethingController'. Make sure that the controller has a parameterless public constructor.
    </ExceptionMessage>
    <ExceptionType>System.InvalidOperationException</ExceptionType>
</error>

发生了一个错误。
尝试创建“SomethingController”类型的控制器时出错。确保控制器具有无参数公共构造函数。
System.InvalidOperationException异常

---

配置

简单注入器时缺少什么？
具有属性WebActivator.PostApplicationStartMethod的程序集需要与启动项目的输出目录（即您的webapi/bin）位于同一目录中

无法正确构造控制器，因为Autofac尚未设置为依赖项解析程序-由于未加载程序集，因此从未调用初始化函数）
您可以发布完整的堆栈跟踪吗？
<Error>
    <Message>An error has occurred.</Message>
    <ExceptionMessage>
    An error occurred when trying to create a controller of type 'SomethingController'. Make sure that the controller has a parameterless public constructor.
    </ExceptionMessage>
    <ExceptionType>System.InvalidOperationException</ExceptionType>
</error>