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Questions tagged [lnk2019]

LNK2019 is a common MSVC linker error indicating that the linker was unable to find a required external symbol in any compilation unit. Check the SO post on common errors and their resolution.

LNK2019 is a common MSVC linker error indicating that the linker was unable to find a required external symbol in any compilation unit. A possible and common cause of the error is a symbol that is declared but never defined.

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Resolving LNK4272 errors

i have a problem with Pgvector extension installation on Windows so the code for installation is set "PGROOT=C:\Program Files\PostgreSQL\15" git clone --branch v0.4.2 https://github.com/pgvector/pgvector.git cd pgvector nmake /F Makefile.win nmake…
Vandalism
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vs2019 meet LNK2001 while using external static library yaml-cpp.lib

I built yaml-cpp staticly using vs2019 and got lib from path yaml-cpp-master\build\Release\yaml-cpp.lib, now I intend to add it to my own project, simple code follows: #include #include using namespace std; int main() { …
Okifu Nearl
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"Cleared" Are Macros exported to a .lib file?

I have some macros like, #define dosomething(x) something(x) and it is compiled into a dll. Will I have that macro in that lib created by the build?
Venkatesh Kumar
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Is WTL 10 compatible with Visual Studio 2022?

I am working on the creation of an ActiveX control using ATL/WTL on Visual Studio 2022, but when I try to compile my solution, I get the following errors: LNK2019 symbole externe non résolu __imp_GetOpenFileNameA référencé dans la fonction…
ademoles
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LNK2019 From Unresolved External Symbol _main in MSVCRTD.lib For New DLL Project

I've begun a new C++ solution in Visual Studio 2019 which contains two projects (hereafter: project1 and project2). Project1 is set as a DLL project and has no main() or _main() function. Project2 is set as the startup project and contains the…
Wickerbough
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Trouble Compiling an OOP Project

I am trying to compile and run an OOP Project but I keep getting 7 LNK2019 Errors everything looks to be defined and linked together. I do not understand why it is not running as it should. I tried running the OOP project in something else besides…
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VS2017 Nuget pthread LNK1120 unresolved

I heard that Nuget builds project easier without any configuration. So, I am trying to add pthreads in my project from Nuget (Actually I am using windows 10 x64 Visual studio 2017, C language, and my friends use linux OS) I just search pthreads in…
TyeolRik
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LNK2019 when trying to use FreeType 2.10.1?

I have been trying to complete the first tutorial on the FreeType website. I am using the provided code on the website and I have added the libraries and included the proper include files but I receive 7 LNK2019 errors: Error LNK2019 unresolved…
Isaac Smith
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LNK2019 Error - Boost Unit Test Framework

I am trying to practice using Boost unit testing but am faced with a LNK2019 error. This error code haunts me as I rarely know what needs to be done to fix it. I have the unit testing class set up as basic as I possibly could. I am just trying to…
bmb
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LNK2019 / 2001: unresolved external symbol

I've seen similar questions online that are problems with people forgetting to include certain things, etc. However I'm getting this error after checking out our code from subversion--others have done the same without getting this problem. My…
Micky
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wstring -> LPCWSTR in ShellExecute give me error LNK2028 & LNK2019

Hello I'm programming in Visual C++ 2010 (spanish) with UNICODE and /clr. I have a header file called "fileFuncs.h": #include #include #include #include #include using namespace std; std::wstring…
Galled
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LNK2019 unable to use GetStagedPackageOrigin()

I have been trying to use the GetStagedPackageOrigin() to get the origin of a specific application in my system. But my program is not compiling because of an unresolved external error. Error LNK2019 : unresolved external symbol…
Bharath Suresh
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Fix MASM 8086 Linker: error LNK2019: unresolved external symbol _putchar

I'm working in Microsoft Visual Studios 2017 with 32-bit 8086 MASM. This exact code worked for me before, but now for some reason it won't build anymore. Here is the error message I'm getting: error LNK2019: unresolved external symbol _putchar…
Erelbrin
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What is the meaning of error LNK2019

Can Somebody tell me what does the following error implies? Error 2 error LNK2019: unresolved external symbol "public: class TLst & __thiscall TLst::operator=(class TLst const &)" (??4?$TLst@VTInt@@@@QAEAAV0@ABV0@@Z) referenced in…
Somnath Chakrabarti
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LNK 2019: Unresolved External Symbol in VS 2017 and Code Correction

This is my code, I am facing problem while build and run. LNK 2019 Unresolved external symbol error it is. Please help me to solve this problem. Person.h #pragma once #include class Person { private: std::string firstname; …
Subhajyoti Mukhopadhyay
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