1>------ Build started: Project: Assignment2, Configuration: Debug Win32 ------ 1>Linking... 1>Person.obj : error LNK2019: unresolved external symbol "class std::basic_ostream > & __cdecl operator<<(class std::basic_ostream > &,class Date const &)" (??6@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@std@@AAV01@ABVDate@@@Z) referenced in function "public: void __thiscall Person::printOn(class std::basic_ostream > &)const " (?printOn@Person@@QBEXAAV?$basic_ostream@DU?$char_traits@D@std@@@std@@@Z) 1>LIBCMT.lib(crt0.obj) : error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup 1>C:\Documents and Settings\Val\My Documents\Visual Studio 2005\Projects\Assignment2\Debug\Assignment2.exe : fatal error LNK1120: 2 unresolved externals 1>Build log was saved at "file://c:\Documents and Settings\Val\My Documents\Visual Studio 2005\Projects\Assignment2\Assignment2\Debug\BuildLog.htm" 1>Assignment2 - 3 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========