Visual Studio 2015 Link Error

[hdycho]

hi. It succeeded in installing and succeeded in obtaining lib and include files. However, when I try to use lib in a new project file, the following error appears. plz help me

Error LNK1120 7 unresolved externals Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Debug\Project1.exe 1
Error LNK2019 unresolved external symbol _EVP_MD_size referenced in function "public: __thiscall HMACValidator::HMACValidator(class std::basic_string<char,struct std::char_traits,class std::allocator > const &,struct evp_md_st const *,class std::basic_string<char,struct std::char_traits,class std::allocator > const &)" (??0HMACValidator@@QAE@ABV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@PBUevp_md_st@@0@Z) Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Project1\jwtd.lib(hmacvalidator.obj) 1
Error LNK2019 unresolved external symbol _EVP_sha256 referenced in function "public: __thiscall HS256Validator::HS256Validator(class std::basic_string<char,struct std::char_traits,class std::allocator > const &)" (??0HS256Validator@@QAE@ABV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@@z) Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Project1\main.obj 1
Error LNK2019 unresolved external symbol _HMAC_CTX_free referenced in function "public: __thiscall HMacCtx::~HMacCtx(void)" (??1HMacCtx@@QAE@XZ) Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Project1\jwtd.lib(hmacvalidator.obj) 1
Error LNK2019 unresolved external symbol _HMAC_CTX_new referenced in function "public: __thiscall HMacCtx::HMacCtx(void)" (??0HMacCtx@@QAE@XZ) Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Project1\jwtd.lib(hmacvalidator.obj) 1
Error LNK2019 unresolved external symbol _HMAC_Final referenced in function "public: virtual bool __thiscall HMACValidator::Sign(unsigned char const *,unsigned int,unsigned char *,unsigned int *)const " (?Sign@HMACValidator@@UBE_NPBEIPAEPAI@Z) Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Project1\jwtd.lib(hmacvalidator.obj) 1
Error LNK2019 unresolved external symbol _HMAC_Init_ex referenced in function "public: virtual bool __thiscall HMACValidator::Sign(unsigned char const *,unsigned int,unsigned char *,unsigned int *)const " (?Sign@HMACValidator@@UBE_NPBEIPAEPAI@Z) Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Project1\jwtd.lib(hmacvalidator.obj) 1
Error LNK2019 unresolved external symbol _HMAC_Update referenced in function "public: virtual bool __thiscall HMACValidator::Sign(unsigned char const *,unsigned int,unsigned char *,unsigned int *)const " (?Sign@HMACValidator@@UBE_NPBEIPAEPAI@Z) Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Project1\jwtd.lib(hmacvalidator.obj) 1

[hdycho]

I solved the above problem, but faced another problem.

Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "public: static class std::tuple<class nlohmann::basic_json<class std::map,class std::vector,class std::basic_string<char,struct std::char_traits,class std::allocator >,bool,__int64,unsigned __int64,double,class std::allocator,struct nlohmann::adl_serializer>,class nlohmann::basic_json<class std::map,class std::vector,class std::basic_string<char,struct std::char_traits,class std::allocator >,bool,__int64,unsigned __int64,double,class std::allocator,struct nlohmann::adl_serializer> > __cdecl JWT::Decode(class std::basic_string<char,struct std::char_traits,class std::allocator > const &,class MessageValidator *,class ClaimValidator *)" (?Decode@JWT@@sa?AV?$tuple@V?$basic_json@Vmap@std@@vvector@2@V?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@2@_N_J_KNVallocator@2@Uadl_serializer@nlohmann@@@nlohmann@@v12@@std@@aebv?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@3@PEAVMessageValidator@@PEAVClaimValidator@@@z) referenced in function main Project1 C:\Users\adydado\Desktop\Testbuild\Project1\Project1\Source.obj 1