我在使用IConfiguration时遇到问题

问题描述

//Fisharoo/Components/Configuration.cs
using System;
using System.ComponentModel.Composition;
using System.Configuration;
using Fisharoo.Interfaces;
namespace Fisharoo.Components
{
    [Export(typeof(IConfiguration))]
        public class Configuration : IConfiguration
        {
            public object GetConfigurationSetting(Type expectedType,
            string key)
                {
                    string value = ConfigurationManager.AppSettings.Get(key);
                    if (value == null)
                        {
                            throw new Exception(string.Format("AppSetting: {0} is not configured.", key));
                        }
                    try
                        {
                        if (expectedType.Equals(typeof(int)))
                            {
                                return int.Parse(value);
                            }
                        if (expectedType.Equals(typeof(string)))
                            {
                                return value;
                            }
                        throw new Exception("Type not supported.");
                        }
                    catch (Exception ex)
                        {
                            throw new Exception(string.Format("Config key:{0} was expected to be of type {1} but was not.", key, expectedType), ex);
                        }
                }
        }
}

这是我的代码，我是WEF用户，不知道该代码收到此错误.

This is my code and I am usig WEF and I do not know wht I get this Error for this code.

//Fisharoo/Components/Configuration.cs


    [Export(typeof(IConfiguration))]
        public class Configuration : IConfiguration

它说找不到类型或名称空间(IConfiguration)"
请帮助我.
谢谢.

It says that "Type or namespace (IConfiguration) cannot be found"
Please help me with this.
Thank you.

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