Help with this error

04/12/2018 03:02 ahrv#1
Im currently adding Drop Log from this source
HTML Code:
https://www.elitepvpers.com/forum/flyff-pserver-guides-releases/4176211-release-dragon-cross-files.html
and here is the error i got everytime im compiling it.
Code:
Error	14	error LNK2019: unresolved external symbol "public: __thiscall CWndDropLog::CWndDropLog(void)" (??0CWndDropLog@@QAE@XZ) referenced in function "public: static class CWndDropLog * __cdecl CWndDropLog::GetInstance(void)" (?GetInstance@CWndDropLog@@SAPAV1@XZ)	D:\Flyff Files\Source\Source\Neuz\DPClient.obj	Neuz
Error	15	error LNK2001: unresolved external symbol "public: __thiscall CWndDropLog::CWndDropLog(void)" (??0CWndDropLog@@QAE@XZ)	D:\Flyff Files\Source\Source\Neuz\WndWorld.obj	Neuz
Error	16	error LNK2019: unresolved external symbol "public: __thiscall CWndDropLog::~CWndDropLog(void)" (??1CWndDropLog@@QAE@XZ) referenced in function "void __cdecl `public: static class GetInstance * __cdecl CWndDropLog::GetInstance(void)'::`2'::`dynamic atexit destructor for 'wnd''(void)" (??__Fwnd@?1??GetInstance@CWndDropLog@@SAPAV1@XZ@YAXXZ)	D:\Flyff Files\Source\Source\Neuz\DPClient.obj	Neuz
Error	17	error LNK2001: unresolved external symbol "public: __thiscall CWndDropLog::~CWndDropLog(void)" (??1CWndDropLog@@QAE@XZ)	D:\Flyff Files\Source\Source\Neuz\WndWorld.obj	Neuz
Error	18	error LNK2019: unresolved external symbol "public: void __thiscall CWndDropLog::Add(struct ItemProp const *)" (?Add@CWndDropLog@@QAEXPBUItemProp@@@Z) referenced in function "private: void __thiscall CDPClient::OnCreateItem(unsigned long,class CAr &)" (?OnCreateItem@CDPClient@@AAEXKAAVCAr@@@Z)	D:\Flyff Files\Source\Source\Neuz\DPClient.obj	Neuz
Error	19	error LNK2019: unresolved external symbol "public: void __thiscall CWndDropLog::AddGold(unsigned int)" (?AddGold@CWndDropLog@@QAEXI@Z) referenced in function "public: void __thiscall CDPClient::OnReapGold(class CAr &)" (?OnReapGold@CDPClient@@QAEXAAVCAr@@@Z)	D:\Flyff Files\Source\Source\Neuz\DPClient.obj	Neuz
Error	20	error LNK2019: unresolved external symbol "public: void __thiscall CWndDropLog::InitDeviceObjects(void)" (?InitDeviceObjects@CWndDropLog@@QAEXXZ) referenced in function "public: __thiscall CWndWorld::CWndWorld(void)" (??0CWndWorld@@QAE@XZ)	D:\Flyff Files\Source\Source\Neuz\WndWorld.obj	Neuz
Error	21	error LNK2019: unresolved external symbol "public: void __thiscall CWndDropLog::DeleteDeviceObjects(void)" (?DeleteDeviceObjects@CWndDropLog@@QAEXXZ) referenced in function "public: virtual long __thiscall CWndWorld::DeleteDeviceObjects(void)" (?DeleteDeviceObjects@CWndWorld@@UAEJXZ)	D:\Flyff Files\Source\Source\Neuz\WndWorld.obj	Neuz
Error	22	error LNK2019: unresolved external symbol "public: void __thiscall CWndDropLog::Process(void)" (?Process@CWndDropLog@@QAEXXZ) referenced in function "public: virtual int __thiscall CWndWorld::Process(void)" (?Process@CWndWorld@@UAEHXZ)	D:\Flyff Files\Source\Source\Neuz\WndWorld.obj	Neuz
Error	23	error LNK2019: unresolved external symbol "public: void __thiscall CWndDropLog::Render(class C2DRender *,int const &)" (?Render@CWndDropLog@@QAEXPAVC2DRender@@ABH@Z) referenced in function "public: virtual void __thiscall CWndWorld::OnDraw(class C2DRender *)" (?OnDraw@CWndWorld@@UAEXPAVC2DRender@@@Z)	D:\Flyff Files\Source\Source\Neuz\WndWorld.obj	Neuz
Error	24	error LNK1120: 8 unresolved externals	D:\Flyff Files\Source\Compiles\Neuz.exe	1	1	Neuz
What seems to be the problem? am i missing something? please help on this.
04/12/2018 06:58 babyminion#2
do this:
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and locate WndDropLog.cpp/h tell me sir if Info_drop is works well thanks :)