Hata nasıl çözülür: LNK2019: çözümlenmemiş harici sembol "public"?

Question

Yazılım için bir eklenti yapmak istiyorum. Eklentiyi yapabilmek için .dll dosyasını yapmalıyım ama bunu yapmakla ilgili birçok zorlukla karşılaştım. Sistemim Windows 7 ve Microsoft Visual Studio 2010'u bir IDE olarak kullanıyorum. Bir dll projesi yaptım ve iki kaynak dosya, bir başlık dosyası hazırladım ve sonra çözümü kurdum ancak aşağıdaki hatalarla karşılaştım.

Not: çözümü oluşturmadan önce, yazılımın içerme ve lib dizinlerinin yolunu ekledim.

1>  Creating library C:\Users\pars\Desktop\example\FEneohookean\Debug\FEneohookean.lib and object C:\Users\pars\Desktop\example\FEneohookean\Debug\FEneohookean.exp 
    1>dllmain.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall FECoreFactory::~FECoreFactory(void)" (??1FECoreFactory@@UAE@XZ) referenced in function __ 
    1>dllmain.obj : error LNK2019: unresolved external symbol "public: void __thiscall FECoreKernel::RegisterClass(class FECoreFactory *)" (?RegisterClass@FECoreKernel@@QAEXPAVFECoreFactory@@@Z) referenced in function "public: __thiscall FERegisterClass_T<class FENeoHookeanPI>::FERegisterClass_T<class FENeoHookeanPI>(unsigned int,char const *)" (??0?$FERegisterClass_T@VFENeoHookeanPI@@@@QAE@IPBD@Z) 
    1>dllmain.obj : error LNK2019: unresolved external symbol "public: static class FECoreKernel & __cdecl FECoreKernel::GetInstance(void)" (?GetInstance@FECoreKernel@@SAAAV1@XZ) referenced in function "public: __thiscall FERegisterClass_T<class FENeoHookeanPI>::FERegisterClass_T<class FENeoHookeanPI>(unsigned int,char const *)" (??0?$FERegisterClass_T@VFENeoHookeanPI@@@@QAE@IPBD@Z) 
    1>dllmain.obj : error LNK2019: unresolved external symbol "public: __thiscall FECoreFactory::FECoreFactory(unsigned int,char const *)" (??0FECoreFactory@@QAE@IPBD@Z) referenced in function "public: __thiscall FERegisterClass_T<class FENeoHookeanPI>::FERegisterClass_T<class FENeoHookeanPI>(unsigned int,char const *)" (??0?$FERegisterClass_T@VFENeoHookeanPI@@@@QAE@IPBD@Z) 
    1>dllmain.obj : error LNK2019: unresolved external symbol "public: __thiscall FEElasticMaterial::FEElasticMaterial(class FEModel *)" (??0FEElasticMaterial@@QAE@PAVFEModel@@@Z) referenced in function "public: __thiscall FENeoHookeanPI::FENeoHookeanPI(class FEModel *)" (??0FENeoHookeanPI@@QAE@PAVFEModel@@@Z) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual class FEParam * __thiscall FEMaterial::GetParameter(class ParamString const &)" (?GetParameter@FEMaterial@@UAEPAVFEParam@@ABVParamString@@@Z) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall FEMaterial::Serialize(class DumpFile &)" (?Serialize@FEMaterial@@UAEXAAVDumpFile@@@Z) 
1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall FEElasticMaterial::SetAttribute(char const *,char const *)" (?SetAttribute@FEElasticMaterial@@UAE_NPBD0@Z) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall FEElasticMaterial::SetAttribute(char const *,char const *)" (?SetAttribute@FEElasticMaterial@@UAE_NPBD0@Z) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall FEMaterial::Properties(void)" (?Properties@FEMaterial@@UAEHXZ) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual class FECoreBase * __thiscall FEMaterial::GetProperty(int)" (?GetProperty@FEMaterial@@UAEPAVFECoreBase@@H@Z) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual int __thiscall FEMaterial::FindPropertyIndex(char const *)" (?FindPropertyIndex@FEMaterial@@UAEHPBD@Z) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual bool __thiscall FEMaterial::SetProperty(int,class FECoreBase *)" (?SetProperty@FEMaterial@@UAE_NHPAVFECoreBase@@@Z) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual double __thiscall FESolidMaterial::Density(void)" (?Density@FESolidMaterial@@UAENXZ) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual void __thiscall FEElasticMaterial::SetLocalCoordinateSystem(class FEElement &,int,class FEMaterialPoint &)" (?SetLocalCoordinateSystem@FEElasticMaterial@@UAEXAAVFEElement@@HAAVFEMaterialPoint@@@Z) 
    1>dllmain.obj : error LNK2001: unresolved external symbol "public: virtual double __thiscall FEElasticMaterial::StrainEnergyDensity(class FEMaterialPoint &)" (?StrainEnergyDensity@FEElasticMaterial@@UAENAAVFEMaterialPoint@@@Z) 
    1>dllmain.obj : error LNK2019: unresolved external symbol "public: __thiscall FEElasticMaterialPoint::FEElasticMaterialPoint(void)" (??0FEElasticMaterialPoint@@QAE@XZ) referenced in function "public: virtual class FEMaterialPoint * __thiscall FEElasticMaterial::CreateMaterialPointData(void)" (?CreateMaterialPointData@FEElasticMaterial@@UAEPAVFEMaterialPoint@@XZ) 
    1>dllmain.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall FEElasticMaterial::~FEElasticMaterial(void)" (??1FEElasticMaterial@@UAE@XZ) referenced in function "public: virtual __thiscall FENeoHookeanPI::~FENeoHookeanPI(void)" (??1FENeoHookeanPI@@UAE@XZ) 
    1>FENeoHookeanPI.obj : error LNK2019: unresolved external symbol "protected: void __thiscall FEParamContainer::AddParameter(void *,enum FEParamType,int,class RANGE,char const *)" (?AddParameter@FEParamContainer@@IAEXPAXW4FEParamType@@HVRANGE@@PBD@Z) referenced in function "protected: virtual void __thiscall FENeoHookeanPI::BuildParamList(void)" (?BuildParamList@FENeoHookeanPI@@MAEXXZ) 
    1>FENeoHookeanPI.obj : error LNK2019: unresolved external symbol "protected: virtual void __thiscall FESolidMaterial::BuildParamList(void)" (?BuildParamList@FESolidMaterial@@MAEXXZ) referenced in function "protected: virtual void __thiscall FENeoHookeanPI::BuildParamList(void)" (?BuildParamList@FENeoHookeanPI@@MAEXXZ) 
    1>FENeoHookeanPI.obj : error LNK2019: unresolved external symbol "public: virtual void __thiscall FEElasticMaterial::Init(void)" (?Init@FEElasticMaterial@@UAEXXZ) referenced in function "public: virtual void __thiscall FENeoHookeanPI::Init(void)" (?Init@FENeoHookeanPI@@UAEXXZ) 
    1>FENeoHookeanPI.obj : error LNK2019: unresolved external symbol "public: class mat3ds __thiscall FEElasticMaterialPoint::LeftCauchyGreen(void)" (?LeftCauchyGreen@FEElasticMaterialPoint@@QAE?AVmat3ds@@XZ) referenced in function "public: virtual class mat3ds __thiscall FENeoHookeanPI::Stress(class FEMaterialPoint &)" (?Stress@FENeoHookeanPI@@UAE?AVmat3ds@@AAVFEMaterialPoint@@@Z) 
    1>C:\Users\pars\Desktop\example\FEneohookean\Debug\FEneohookean.dll : fatal error LNK1120: 21 unresolved externals 
    1> 
    1>Build FAILED 

Bu hataları nasıl çözebilirim?

Answer 1

Proje ayarına kitaplık yolunun eklenmesine ek olarak, gerekli kitaplık dosyalarını (.lib) ekleyiciye ek bir bağımlılık olarak eklediğinizden emin olun. ek bağımlılık girdi alanını proje-> özellikler-> linker-> Girdi'de bulabilir ve bir boşlukla ayrılmış kitaplık dosyalarının gerçek isimlerini (uzantısıyla) ekleyebilirsiniz.