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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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Unresolved externals in OpenGL project

I am trying to run a program and test whether the input functions are working. But whenever I run the code, I get a set of errors saying: Severity Code Description Project File Line Suppression State Warning C4244 'initializing':…
MachoMan
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C2672 and C2893 error in Visual Studio C++ but not in linux

My colleague who uses Linux ran the same code as me, however, it compiled and ran perfectly for him. I am pretty new to using C++ and Visual Studio(latest version) so this might be silly. I have the following code in a header file #pragma…
Darth jedi
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Error when importing a class/structures from one dll to another dll (c++, lnk2019)

I have 2 DLLs. The first describes the LinkedList data structure. In the second, this structure is used. LinkedList.h (from first .ddl): #pragma once #ifdef DS_EXPORTS #define DS_LL_API __declspec(dllexport) #else #define DS_LL_API…
Koteika
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C++ Linker Error LNK2019

I'm still kind of new to C++ and don't know why I'm getting these linker errors while trying trying to call these functions in another class. The errors are: error LNK2019: unresolved external symbol "public: float __thiscall Star::getMass(void)"…
Nate
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How to fix linker error that says there is a problem with the scalar deleting destructor?

I get LNK 2019 and LNK 1120 errors with the following c++ code. This is the error message: graphapp.obj:-1: error: LNK2019: unresolved external symbol "public: virtual __cdecl GraphApp::~GraphApp(void)" (??1GraphApp@@UEAA@XZ) referenced in function…
user19377312
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How do I eliminate the linker errors in my program?

Well, I'm writing this code for my class and I'm getting linker errors LNK2019 and LNK1120 using Visual Studio. I'm not all too sure why it's doing what it's doing, but I digress. Header file: #ifndef PointClass #define…
Steff
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Error while link ITK and VTK libraries to QT

I want to develop image processing and visualization software. So i tried to integrate vtk and itk to qt and used msvc2015 compiler. Unfortunately there is an error occurred while link libraries of itk to Qt.The complete error given…
Deepak Murali
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How can I resolve error lnk2019 C++ by changing project settings

I am engaged in a legacy project that is written very incomprehensibly. The fact is that the project was written a long time ago and developed for x86. Nevertheless, it starts and works. But since I didn't set up visual studio, it gives the error…
Vladimir Bait
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Compilation Error About Templated Classes

I have a AVL class like this, it's templated and it gives error in main, I have tried to debug it for hours but it didn't fixed. What can be the problem? What part am I missing? It can be related to constructors but I tried that and it didn't fixed.…
Ege
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LNK2019 with a sample from MSDN

Tried to copy the code from the .cpp file in Common File Dialog Sample got some LNK2019. It seems like a problem with the linking of 3 functions. Here are the errors: Severity Code Description Project File Line Suppression State Error …
Avisrul156689
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why does linker error keep happening even though I set the AdditionalDependencies already?

I was following the OpenGL tutorial from Freecodecamp.org (https://www.youtube.com/watch?v=45MIykWJ-C4) and I got this error while following the "Window" part of the tutorial. #include #include #include int…
PrimeNumbrs
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LNK2019 Unresolved External Symbol, Can't figure out why?

apologies in advance as this is most likely my own impotence to find the error and simply overlooking the answer. Anyway; when invoking XEngine::MapConstBufferData in my entry point I run into LNK2019, I'm quite clueless as to why but believe the…
Gijahara
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"error LNK2019: unresolved external symbol" in Windows with VS2019 but build well in Ubuntu

I am running this repo: https://github.com/tomhsu1990/Iterative-Closest-Point-ICP. (demonstration video: https://www.youtube.com/watch?v=m64E47uvPYc). I built it well in Ubuntu but get a error when build it in Windows. I google in a few days but I…
Na Ja
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I keep getting error LNK2019 or unresolved external symbol error in C and can not see why

I am getting the error unresolved External symbol _applicationStartup referenced in function main. I have the function declared and defined correctly but it keeps giving the error. These are the main parts of the code, everything is stored and…
FishLord
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Visual Studio C++ - Template class LNK2019 error

I'm facing LNK2019 error: unresolved external symbol on some_container methods (including constructor and destructor) while trying to build my project. This comes from my template class: some_container.hpp #include namespace…
Victor Vector
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