Question

我想为软件制作一个插件。为了制作插件，我应该制作一个.dll文件，但是我在制作它时遇到了很多挑战。我的系统是Windows 7，我使用Microsoft Visual Studio 2010作为IDE。我做了一个dll项目并制作了两个源文件，一个头文件，然后我构建了解决方案但是我遇到了以下错误。

注意：在构建解决方案之前，我添加了软件的include和lib目录的路径。

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

如何解决这些错误？

Answer 1

除了将库路径添加到项目设置之外，还要确保还添加了所需的库文件（.lib）作为链接器的附加依赖项。您可以在project-＆gt; properties-＆gt; linker-＆gt;输入中找到其他依赖项输入字段。输入并添加由空格分隔的库文件的实际名称（带扩展名）。

如何解决错误：LNK2019：未解析的外部符号＆＃34; public＆＃34;？

1 个答案: