An unhandled exception of type 'System.IO.FileNotFoundException' occurred in Unknown Module

今天编写一个c++ clr程序调用c# dll，由于不熟，爆出一个错误

An unhandled exception of type 'System.IO.FileNotFoundException' occurred in Unknown Module

c# 类库代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace CSharpDll0217
{
	public class Class1
	{
		private string name;
		public string Name
		{
			get
			{
				return name;
			}
			set
			{
				name = "Your Name: " + value;
			}
		}
	}
}

c++ clr 控制台程序代码：

// Clr0217.cpp : main project file.

#include "stdafx.h"

#using "D:\\hbj\\test\\test1024\\Debug\\CSharpDll0217.dll"
using namespace CSharpDll0217;

using namespace System;

int main(array ^args)
{
    Console::WriteLine(L"Hello World");
	Class1 ^c1 = gcnew Class1;
	c1->Name = "zzj";
	Console::WriteLine(c1->Name);
    return 0;
}

然后就报错了：An unhandled exception of type 'System.IO.FileNotFoundException' occurred in Unknown Module

搜索了一下，stackoverflow上说工作路径保持一致，于是修改c# dll项目输出路径：Properties->Build->Outpath,使其与c++生产的exe同一目录

然后c++代码路径也顺便修改：

#using "D:\\hbj\\test\\test1024\\Debug\\CSharpDll0217.dll"

至此问题解决。

参考：http://stackoverflow.com/questions/9729691/an-unhandled-exception-of-type-system-io-filenotfoundexception-occurred-in-unk

http://developer.51cto.com/art/201104/254308.htm

http://blog.csdn.net/benbencoco/article/details/20464533?utm_source=tuicool&utm_medium=referral