Question

我正在尝试在MS Visual Studio C ++ 2012中编译解决方案我的代码使用marshallsoft AES库我为库添加了这些并包含路径：

C:\aes4c\APPS至Configuration properties->VC++ Directories->Include Directories
C:\aes4c\DLLS至Configuration properties->VC++ Directories->Library Directories

当我编译单个.cpp文件时，它编译没有问题但是当我构建解决方案时，我得到：

------ Build started: Project: cryptest2, Configuration: Debug Win32 ------
cryptest2.obj : error LNK2019: unresolved external symbol __imp__aesAttach@8 referenced in function "int __cdecl EncryptFileW(char *,char *)" (?EncryptFileW@@YAHPAD0@Z)
cryptest2.obj : error LNK2019: unresolved external symbol __imp__aesEncryptFile@12 referenced in function "int __cdecl EncryptFileW(char *,char *)" (?EncryptFileW@@YAHPAD0@Z)
cryptest2.obj : error LNK2019: unresolved external symbol __imp__aesInitAES@20 referenced in function "int __cdecl EncryptFileW(char *,char *)" (?EncryptFileW@@YAHPAD0@Z)
C:\Users\ariyan\documents\visual studio 2012\Projects\cryptest2\Debug\cryptest2.exe : fatal error LNK1120: 3 unresolved externals
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

有什么问题？
我该如何解决？

我的代码是：

#include "stdafx.h"
#include <windows.h>
#include <stdio.h>
#include "aes.h"

int EncryptFile(char *KeyBuffer, char *FileName);

int _tmain(int argc, _TCHAR* argv[])
{
    EncryptFile("1234567890abcdef","c:\test.txt");
    return 0;
}


int EncryptFile(char *KeyBuffer, char *FileName)
{int Code;
 // attach DLL
 Code = aesAttach(0, 0);
 if(Code<0)
   {printf("ERROR %d: Cannot attach\n", Code);
    return FALSE;
   }
 printf("Will encrypt file in CBC mode\n");
 Code = aesInitAES((char *)KeyBuffer, NULL, AES_ECB_MODE, AES_ENCRYPT, NULL);
 if(Code<0)
   {printf("aesInitAES fails\n");
    return FALSE;
   }
 printf("Encrypt file...\n");
 Code = aesEncryptFile(NULL, KeyBuffer, FileName);
 if(Code<0)
   {printf("aesEncryptFile fails\n");
    return FALSE;
   }
 printf("%d bytes encrypted\n", Code);
 return Code;
}

Answer 1

添加到库路径是不够的 - 只是告诉链接器在哪里寻找库，如果它决定与它链接。但是你必须首先告诉链接器寻找它。为此，请在

中提及LIB文件名

项目＆gt;属性＆gt;链接器＆gt;输入＆gt;附加依赖

Visual C ++中未解析的外部

1 个答案: