我正在尝试构建一个使用 Boost 库的文件系统部分的某些功能的项目，但我不断收到链接器错误。
我按照 Boost 文档进行构建，它构建成功，然后将所有 lib 文件从 stage 目录移动到 C:/boost/lib，将 hpp 文件移动到 C:/boost/include。我正在使用 Microsoft Visual Studio 2012 Express Edition。我确保将属性页面中的文件（libboost_filesystem-vc110-mt-1_54.lib 和 libboost_system-vc110-mt-1_54.lib）添加到需要链接的文件中（我也尝试使用#pragma 明确）。我尝试了包含 gd 的 .lib 文件和不包含的文件（调试文件和不用于调试的文件）。
我的问题是，我该如何解决这个问题？我建错文件了吗？我是否指定了某种错误的链接器属性？
这是错误（我省略了一些以保持简短，如果需要我可以将它们全部添加）：
Error 1 error LNK2019: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAAEBVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'native_ecat''(void)" (??__Enative_ecat@system@boost@@YAXXZ) C:\Visual Studio 2012 Projects\MMS_Solution\MMS_Prj_FindFile\MMS_Prj_FindFile.obj MMS_Prj_FindFile
Error 2 error LNK2019: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAAEBVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'errno_ecat''(void)" (??__Eerrno_ecat@system@boost@@YAXXZ) C:\Visual Studio 2012 Projects\MMS_Solution\MMS_Prj_FindFile\MMS_Prj_FindFile.obj MMS_Prj_FindFile
[...]
Error 5 error LNK2019: unresolved external symbol "public: class boost::filesystem::path __cdecl boost::filesystem::path::root_path(void)const " (?root_path@path@filesystem@boost@@QEBA?AV123@XZ) referenced in function main C:\Visual Studio 2012 Projects\MMS_Solution\MMS_Prj_FindFile\MMS_Prj_FindFile.obj MMS_Prj_FindFile
Error 6 error LNK2019: unresolved external symbol "public: class boost::filesystem::path __cdecl boost::filesystem::path::root_name(void)const " (?root_name@path@filesystem@boost@@QEBA?AV123@XZ) referenced in function main C:\Visual Studio 2012 Projects\MMS_Solution\MMS_Prj_FindFile\MMS_Prj_FindFile.obj MMS_Prj_FindFile
[...]
Error 18 error LNK1120: 17 unresolved externals C:\Visual Studio 2012 Projects\MMS_Solution\x64\Debug\MMS_Prj_FindFile.exe MMS_Prj_FindFile
这是链接器选项（如果需要其他我可以添加它们）：
Linker -> General
Enabled Incremental Linking = Yes (/INCREMENTAL)
Ignore Import LIbrary = No
Register Output = No
Per-user Redirection = No
Additional Library Directories = C:\openssl\lib;C:\boost\lib
Link Library Dependencies = Yes
Use Library Dependency Inputs = No
Prevent Dll Binding =
Linker -> Input
除了
Additional Dependencies = ssleay32.lib;libeay32.lib;Ws2_32.lib;libboost_system-vc110-mt-1_54.lib;libboost_filesystem-vc110-之外，所有这些都是空白的mt-1_54.lib;%（附加依赖项）
这是代码：
//Boost Includes
#include <boost/filesystem.hpp>
//Boost linking because visual studio won't link it (ugh)
#pragma comment (lib, "libboost_system-vc110-mt-gd-1_54.lib")
#pragma comment (lib, "libboost_filesystem-vc110-mt-gd-1_54.lib")
//Normal Includes
#include <iostream>
#include <string>
namespace bfs = boost::filesystem;
int main(int argc, char* argv[])
{
std::vector<std::string> foundPaths;
bfs::directory_iterator eit;
for(bfs::directory_iterator it("."); it != eit; it++)
{
if(!bfs::is_regular_file(it->status()))
continue;
bfs::path foundPath = it->path();
foundPaths.push_back("Root name: " + foundPath.root_name().string() + "\n" +
"Root dir : " + foundPath.root_directory().string() + "\n" +
"Root path: " + foundPath.root_path().string() + "\n" +
"Rel path: " + foundPath.relative_path().string() + "\n" +
"Prnt path: " + foundPath.parent_path().string() + "\n" +
"File name: " + foundPath.filename().string() + "\n" +
"Stem : " + foundPath.stem().string() + "\n" +
"Extension: " + foundPath.extension().string() + "\n");
}
for(std::vector<std::string>::iterator it = foundPaths.begin(); it != foundPaths.end(); ++it)
{
std::cout << *it << std::endl;
}
return 0;
}