Mmm, not sure what is going on there. I can only recommend to take a look at the examples the library provides. Also try linking against the static filesystem lib. -delfin _____ From: boost-users-bounces@lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Mesut Büyüktokatli Sent: Monday, July 25, 2005 2:29 PM To: boost-users@lists.boost.org Subject: Re: [Boost-users] problem using boost::filesystem Well, when i try boost::filesystem::path(C:\\, boost::filesystem::native); i get a linker error saying this: Tutorial02.obj : error LNK2001: Nichtaufgeloestes externes Symbol "public: __thiscall boost::filesystem::path::path(char const *,bool (__cdecl*)(class _STL::basic_string<char,struct std::char_traits<char>,class _STL::allocator<char> > const &))" (?? 0path@filesystem@boost@@QAE@PBDP6A_NABV?$basic_string@DU?$char_traits@D@std@ @V?$allocator@D@_STL@@@_STL@@@Z@Z) Tutorial02.obj : error LNK2001: Nichtaufgeloestes externes Symbol "bool __cdecl boost::filesystem::native(class _STL::basic_string<char,struct std::char_traits<char>,class _STL::allocator<char> > const &)" (?native@filesystem@boost@@YA_NABV?$basic_s tring@DU?$char_traits@D@std@@V?$allocator@D@_STL@@@_STL@@@Z) Debug/Tutorial02.exe : fatal error LNK1120: 2 unaufgeloeste externe Verweise (Sorry its german writings in it) Mesut