error LNK1120: 2 unresolved externals	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\Debug\xyx.exe

 error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAABVerror_category@12@XZ)	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\libboost_locale-vc100-mt-gd-1_51.lib

 error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAABVerror_category@12@XZ)	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\libboost_locale-vc100-mt-gd-1_51.lib(lcid.obj)

 error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAABVerror_category@12@XZ)	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\libboost_locale-vc100-mt-gd-1_51.lib(date_time.obj)

 error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAABVerror_category@12@XZ)	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\libboost_locale-vc100-mt-gd-1_51.lib(localization_backend.obj)

error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAABVerror_category@12@XZ)	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\libboost_locale-vc100-mt-gd-1_51.lib(lcid.obj)

 error LNK2001: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAABVerror_category@12@XZ)	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\libboost_locale-vc100-mt-gd-1_51.lib(date_time.obj)

 error LNK2019: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::generic_category(void)" (?generic_category@system@boost@@YAABVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'posix_category''(void)" (??__Eposix_category@system@boost@@YAXXZ)	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\libboost_locale-vc100-mt-gd-1_51.lib(generator.obj)

 error LNK2019: unresolved external symbol "class boost::system::error_category const & __cdecl boost::system::system_category(void)" (?system_category@system@boost@@YAABVerror_category@12@XZ) referenced in function "public: __thiscall boost::thread_exception::thread_exception(int,char const *)" (??0thread_exception@boost@@QAE@HPBD@Z)	C:\Documents and Settings\Admin\My documents\visual studio 2010\Projects\xyx\libboost_locale-vc100-mt-gd-1_51.lib(generator.obj)