使用log4cplus时遇到的链接错误：无法解析的外部符号 "public: __thiscall log4cplus::RollingFileAppender::RollingFileAppende

<span style="font-size:18px;">1>ImgProcess_server.skeleton.obj : error LNK2001: 无法解析的外部符号 "public: __thiscall log4cplus::RollingFileAppender::RollingFileAppender(class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > const &,long,int,bool,bool)" (??0RollingFileAppender@log4cplus@@QAE@ABV?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@JH_N1@Z)
1>ImgProcess_server.skeleton.obj : error LNK2001: 无法解析的外部符号 "class std::basic_ostringstream<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > & __cdecl log4cplus::detail::get_macro_body_oss(void)" (?get_macro_body_oss@detail@log4cplus@@YAAAV?$basic_ostringstream@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@XZ)
1>ImgProcess_server.skeleton.obj : error LNK2001: 无法解析的外部符号 "void __cdecl log4cplus::detail::macro_forced_log(class log4cplus::Logger const &,int,class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > const &,char const *,int,char const *)" (?macro_forced_log@detail@log4cplus@@YAXABVLogger@2@HABV?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@PBDH2@Z)
1>ImgProcess_server.skeleton.obj : error LNK2001: 无法解析的外部符号 "public: static class log4cplus::Logger __cdecl log4cplus::Logger::getInstance(class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > const &)" (?getInstance@Logger@log4cplus@@SA?AV12@ABV?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@@Z)
1>ImgProcess_server.skeleton.obj : error LNK2001: 无法解析的外部符号 "public: __thiscall log4cplus::NDCContextCreator::NDCContextCreator(wchar_t const *)" (??0NDCContextCreator@log4cplus@@QAE@PB_W@Z)
1>F:\CBIR0706\Server_LAC_Release\Release\server.exe : fatal error LNK1120: 5 个无法解析的外部命令</span>