Stack Overflow
Stack Overflow

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.

Before posting, check these posts

558 questions
0
votes
0 answers

Unresolved external symbol when create new slot

I get "LNK2019: unresolved external symbol" error when trying to create new slot in any window class with standard C++ library arguments. private slots: ... void setNewTableItemFromDialog(int number, int age, string rate, string name,…
Nikita
  • 11
  • 1
0
votes
1 answer

C++ error LNK2019 and error LNK1120

Hello i am making a tic tac toe game in console. What's wrong with my code? I Got linker settings set as console. code: // Tic tac Toe // Plays a tic tac toe game against a npc #include #include #include #include…
Blackelfwolf
  • 17
  • 1
  • 5
0
votes
1 answer

c++ constructor lnk2019 unresolved external symbol

I've been learning C++ for the last term, and I'm currently working on a database project. After working on this project for a while, and troubleshooting this last weekend, I'm finally down to an error which I believe is the root of the problem. It…
Edward Hay
  • 1
  • 3
0
votes
0 answers

Why I get LNK2019 error with libtorch1.5 when I specify right *.lib

I have written a program which needs to use libtorch libs. I use libtorch-win-shared-with-deps-1.5.0 package，I have configured my project to make linker->input include c10.lib as shown below When I compile this project I received three link…
luffy
  • 1
0
votes
1 answer

LNK2019 - unresolved external symbol error

I have a problem when compiling my main class. //main.cpp #include "Division.h" int main() { Division Root; } Here is my Division.h //Division.h #pragma once #include #include class Division { public: Division(); …
Vento
  • 33
  • 3
0
votes
3 answers

LNK2019 Using untemplated classes

I'm getting linker errors when using Classes that reference other classes in them. 1>main.obj : error LNK2019: unresolved external symbol "public: __thiscall MovePattern::~MovePattern(void)" (??1MovePattern@@QAE@XZ) referenced in function "public:…
Everspace
  • 382
  • 1
  • 3
  • 13
0
votes
0 answers

Issues trying to build a random project in Visual Studio

I am trying to build this project, which is basically an extractor for specific .rom files. As someone with close to zero experience in coding, I am having one issue after another trying to build it. The project description says it requires…
Lazard
  • 1
0
votes
0 answers

C++ LNK2019 | Unresolved Symbol | Visual Studio 2013 | Virtual Functions | GTest

This error has been reported many times but I couldn't find what I was looking for. The following are the build errors error LNK2019: unresolved external symbol "public: enum CLASS_ID __thiscall smp::sampleAbs::getClassID(void)"…
iamlost
  • 1
0
votes
0 answers

Error LNK2019 link error catkin_make windows

I am trying to compile a ROS package in Windows. I follow the procedure to set the ROS environment described here http://wiki.ros.org/Installation/Windows . I want to compile a ROS package tested and working on ROS in Linux. This package has to use…
Umberto Fontana
  • 1
  • 1
0
votes
1 answer

unresolved externals- linking issues

currently taking a course for c++ got a project about template classes and functions- got this error msg couldn't tell where from, all files compile just fine. double-checked everything declarations etc ERROR MSG: Menu.obj : error LNK2019:…
Abby
  • 17
  • 4
0
votes
1 answer

I get a linking error (LINK 2019) when I try to augment a class with template

I'm trying to build a simple heap data structure for practice. When I build the version for double it works fine. class heapt { public: heapt(); heapt(std::initializer_list lst); void print_heapt(); private: int size; …
CharlieKeith
  • 55
  • 6
0
votes
0 answers

Can I still use wxIndustrialControls for wxWidgets? LNK2019 Error

For wxIndustrialControls, it's old but I wanted to know if it still works. "Why don't you try it yourself?". Well I did. This is what happens First here is the source link if anyone wants to see it…
TheCoolest2
  • 33
  • 7
0
votes
1 answer

LNK2019 while compiling Agora.IO windows sample

I'm getting LNK2019 error while compiling Agora.io samples (https://docs.agora.io/en/Agora%20Platform/downloads) Which library should I include to the project and in what way? The lnk2019 error in VS
Alex Snow
  • 1
0
votes
1 answer

LNK2019: unresolved external symbol _kiss_fftr_alloc referenced in function "void __cdecl mainfunc(void)

I have been trying to use Kiss FFT in my project. I cloned this repository in my project folder: https://github.com/mborgerding/kissfft and I followed this link to use it in my project: https://github.com/berndporr/kiss-fft I am using Clion to…
Khubaib Ahmad
  • 141
  • 10
0
votes
0 answers

"error LNK2019: unresolved external symbol" while using templates

So I'm trying to create a generic deck of cards that I can populate with any type of card, here's is the code for the Deck class and the Card class: Deck.h: #pragma once #include "Card.h" class Deck { private: Card* m_current_card; Card*…
Ahmed Alarbi
  • 33
  • 4
1 2 3
…
37 38