调用FileHelperEngine构造函数时,在PresentationFramework.dll中

A first chance exception of type
‘System.Windows.Markup.XamlParseException’ occurred in
PresentationFramework.dll
Additional information: ‘The invocation of
the constructor on type ‘filehelpertest.MainWindow’ that matches the
specified binding constraints threw an exception.’ Line number ‘3’ and
line position ‘9’.

大家好,

我是FileHelpers的新手.

我在VS Express 2013中制作了一个最小的WPF项目,以便解决这个问题.
代码将从FileHelpers文档中的“Quick Start for Delimited files”部分复制.

我试过引用3个不同版本的FileHelpers.dll(2.0,1.1,Mono1.2),我尝试重启.但是我看不到任何影响.必须有一些非常简单的东西,我错过了吗？

或者FileHelpers不适用于较新版本的.NET？

谢谢！

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using FileHelpers;

namespace filehelpertest
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            FileHelperEngine engine = new FileHelperEngine(typeof(Customer));
            // To Read Use:
            Customer[] res = engine.ReadFile("f1.txt") as Customer[];
            // To Write Use:
            engine.WriteFile("f2.txt",res);
        }

        [DelimitedRecord(",")]  
        public class Customer
        {
            public int CustId;
            public string Name;
        }
    }
}