My build keeps failing.. Please help.
 

I'm getting this, please help....

6>.\clientlist.cpp(1012) : warning C4018: '<' : signed/unsigned mismatch
6>.\clientlist.cpp(1314) : warning C4018: '<' : signed/unsigned mismatch
6>.\clientlist.cpp(1317) : warning C4018: '<' : signed/unsigned mismatch
6>.\clientlist.cpp(1427) : warning C4018: '<' : signed/unsigned mismatch
6>.\clientlist.cpp(1430) : warning C4018: '<' : signed/unsigned mismatch
6>chatchannel.cpp
6>Linking...
6>chatchannel.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::SetChannelOwner(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?SetChannelOwner@Database@@QAEXV?$basic_string@DU ?$char_traits@D@std@@V?$allocator@D@2@@std@@0@Z)
6>chatchannel.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::SetChannelPassword(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?SetChannelPassword@Database@@QAEXV?$basic_string @DU?$char_traits@D@std@@V?$allocator@D@2@@std@@0@Z )
6>clientlist.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::GetFriendsAndIgnore(int,class std::vector<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::allocator<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > > > &,class std::vector<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::allocator<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > > > &)" (?GetFriendsAndIgnore@Database@@QAEXHAAV?$vector@V ?$basic_string@DU?$char_traits@D@std@@V?$allocator @D@2@@std@@V?$allocator@V?$basic_string@DU?$char_t raits@D@std@@V?$allocator@D@2@@std@@@2@@std@@0@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::RemoveFriendOrIgnore(int,int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?RemoveFriendOrIgnore@Database@@QAEXHHV?$basic_st ring@DU?$char_traits@D@std@@V?$allocator@D@2@@std@ @@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::AddFriendOrIgnore(int,int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?AddFriendOrIgnore@Database@@QAEXHHV?$basic_strin g@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z )
6>clientlist.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::SetMessageStatus(int,int)" (?SetMessageStatus@Database@@QAEXHH@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: bool __thiscall Database::SendMail(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?SendMail@Database@@QAE_NV?$basic_string@DU?$char _traits@D@std@@V?$allocator@D@2@@std@@0000@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::SendBody(class Client *,int)" (?SendBody@Database@@QAEXPAVClient@@H@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::SendHeaders(class Client *)" (?SendHeaders@Database@@QAEXPAVClient@@@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::GetAccountStatus(class Client *)" (?GetAccountStatus@Database@@QAEXPAVClient@@@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: bool __thiscall Database::VerifyMailKey(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (?VerifyMailKey@Database@@QAE_NV?$basic_string@DU? $char_traits@D@std@@V?$allocator@D@2@@std@@H0@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: int __thiscall Database::FindCharacter(char const *)" (?FindCharacter@Database@@QAEHPBD@Z)
6>clientlist.obj : error LNK2001: unresolved external symbol "public: int __thiscall Database::FindAccount(char const *,class Client *)" (?FindAccount@Database@@QAEHPBDPAVClient@@@Z)
6>ucs.obj : error LNK2001: unresolved external symbol "public: void __thiscall Database::ExpireMail(void)" (?ExpireMail@Database@@QAEXXZ)
6>ucs.obj : error LNK2001: unresolved external symbol "public: bool __thiscall Database::LoadChatChannels(void)" (?LoadChatChannels@Database@@QAE_NXZ)
6>worldserver.obj : error LNK2001: unresolved external symbol "class queryservconfig const * const Config" (?Config@@3PBVqueryservconfig@@B)
6>.\../Build/Chatserver.exe : fatal error LNK1120: 16 unresolved externals
6>Build log was saved at "file://c:\source\trunk\EQEmuServer\Build\ucs\Release\Buil dLog.htm"
6>ucs - 17 error(s), 5 warning(s)
========== Build: 4 succeeded, 2 failed, 0 up-to-date, 0 skipped ==========