SimpleInjector-我无法获得实例

Question

我使用文件夹中的批量添加在容器中注册了几种类型（界面及其具体类型）（下面是代码）。当我尝试检索实例时，我无法获取实例。

    var pluginDLLs = new DirectoryInfo(pluginDirectory).GetFiles()
    .Where(file => file.Extension.ToLower() == ".dll")
    .ToList();

var pluginAssembliesList = 
    pluginDLLs.Select(dll => Assembly.LoadFrom(dll.FullName)).ToList();

var pluginAssemblies = pluginAssembliesList
    .Where(pluginAssembly => pluginAssembly.FullName.StartsWith("QS."))
    .ToList();

pluginAssembliesTypes = 
    pluginAssemblies.SelectMany(a => a.GetExportedTypes()).ToList();

//Identify commands based on ICommand. Code that identifies all command including ICommandGetTestResultsRun
var icommandType = pluginAssembliesTypes
    .First(type => type.IsInterface && type.Name.Equals("ICommand"));

var commands = (
    from type in pluginAssembliesTypes
    where !type.IsInterface
    where icommandType.IsAssignableFrom(type) 
    where type.GetInterfaces().Any(t => type.GetConstructor(new Type[] { t }) != null)
    select new
    { 
        Service = type.GetInterfaces()
            .First(t => type.GetConstructor(new Type[] { t }) != null), 
        Implementation = type 
    }).ToList();
commands.ForEach(reg => 
    container.Register(reg.Service, reg.Implementation, Lifestyle.Transient));

var test = container.GetInstance(typeof (ICommandGetTestResultRuns));

我附上Simple Injector源代码的屏幕截图，我认为它失败了。你能不能找出我做得不对的事。

这是ICommandGetTestResultRuns实现。

namespace QS.Rand.BusinessLogic.Commands
{
public interface ICommand
{
}
}

namespace QS.Rand.BusinessLogic.Commands.TestResults
{
public interface ICommandGetTestResultRuns : ICommand
{
    IntFilter IdTestRequestFilter { get; set; }
    IntFilter IdSampleFilter { get; set; }
    IntFilter IdBatchFilter { get; set; }
    IntFilter IdFilter { get; set; }
}
}

namespace QS.Rand.BusinessLogic.Commands
{
public class CommandGetTestResultRuns : Command<IEnumerable<ITestResultRun>>, ICommandGetTestResultRuns
{
    protected static readonly log4net.ILog logger = log4net.LogManager.GetLogger(typeof(CommandGetTestResultRuns));
    #region ICommandGetTestRuns implementation
    public IntFilter IdTestRequestFilter { get; set; }
    public IntFilter IdSampleFilter { get; set; }
    public IntFilter IdBatchFilter { get; set; }
    public IntFilter IdFilter { get; set; } 
    #endregion

    protected DA.ITestRunRepository TestRunRepository { get; set; }

    public CommandGetTestResultRuns() { }

    public CommandGetTestResultRuns(ICommandGetTestResultRuns cmd)
    {
        IdTestRequestFilter = cmd.IdTestRequestFilter;
        IdFilter = cmd.IdFilter;
        IdSampleFilter = cmd.IdSampleFilter;
        IdBatchFilter = cmd.IdBatchFilter;
    }

    public override IResult<IEnumerable<ITestResultRun>> Execute()
    {
        var result = new Result<IEnumerable<ITestResultRun>>();
        var filter = new DaTestRunFilter();
        try
        {
            var daRuns = TestRunRepository.GetTestRuns(filter, new List<Tuple<string, DA.OrderDirection>>());
            var runs = new List<ITestResultRun>();
            result.Value = runs;
            result.IsOK = true;
        }
        catch (Exception ex)
        {
            result = new Result<IEnumerable<ITestResultRun>>() { IsOK = false, Message = new ResultMessage() { Level = MessageLevel.Error, Text = ex.Message }, Value = null };
            logger.Error(ToLogString(), ex);
        }
        return result;
    }

    private string ToLogString()
    {
        var sb = new StringBuilder();
        sb.AppendFormat("Unable to load test request samples");
        return sb.ToString();
    }

}

}