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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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C++ Linked list with Objects that is coming up with the LNK2019 error

Basicaly this is my assignment project for C++ and i'm pretty new to C++ and i'm getting this error up. Also having an error for the commented code in main == is not a matched operand 1>Main2.obj : error LNK2019: unresolved external symbol "class…
Learning
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LNK2019 When Using WinMain In QtCreator

I'm making a FLTK GUI in QtCreator. Please don't get angry at me for not using Qt to make my GUI, it's irrelevant. Anyway, my project type is "Plain C++ Project", and this is my code (You probably don't need to read it, but I put it there just in…
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c++ (constructor) inheritance - LNK 2019 error

Possible Duplicate: What is an undefined reference/unresolved external symbol error and how do I fix it? I have a LNK error that involves a class A and its derived class B. More precisely, I have this compilation error Error 239 error LNK2019:…
kiriloff
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Non-class method in Qt ( with qtcreator ) unresolved external symbol

I have an application that was built without problems in Linux, now I'm trying to compile it against Windows, I created a .pro file specially for compiling it in windows. I use a pseudo-class ( just a namespace with a buch of methods, but without a…
Former User of Mine
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LNK2019 error unresolved external symbol

i decided to create a list (for practice reasons so get off my back about reinvening the wheel thanks..) I got this LNK2019 ERROR and i belive its code specific becus i cant seem to find a way to fix it ( yes i serched here ) I have found that the…
David Limkys
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TCHAR and unresolved external symbol (LNK2019) error in C++ program?

My project has two cpp files and one header file. One cpp file contains the implementation of a single class and its declaration is in the header file. The other cpp file is which contains the int main function. One of the constructors of the class…
chemkatku
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A slight issue with GLFW (x64)

I am currently working on converting some of my applications to C++, and for that i have decided to use openGL, as ive got some experience with it from other platforms. But getting this to compile in x64 seems to be quite a lot of hassle. To check…
user1419305
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MSVC linker error LNK2019 when reusing a base class in C++ solution

This really beats me and the Visual Studio 2008 is so brainless that it's not helpful with the following errors at all. My C++ solution has several projects in it. One project has the base C++ class CCrashReporter in crashreporter.h and…
ahmd0
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Link Error 2019 for Programming Assignment

1>Main.obj : error LNK2019: unresolved external symbol "void __cdecl createVideoList(class std::basic_ifstream > &,class Video &)"…
AlphaOmegaStrife
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error LNK2019: unresolved external symbol due to helper library

I think the issue is with a function ConvertToUpperCase included in a helper library used in my CS course. I am trying to write something for my experiment but I learned with the helper library - so I don't know what to do without it. The full error…
forest.peterson
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Qt - Glut32 Lib

I'm trying to create an Glut window with Qt creator. All my code has been done on another computer. Now, I want to compile it on my own. I've added the Glut32 library files in the following folders: glut32.lib into a lib/ foler in my project…
Manitoba
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Visual C++ Linking LNK2019 Error with a Precompiled Header

I had a very weird problem with precompile header. The linker generates LNK2019: unresolved external symbol error when I implement method in .cpp file. However, the program could be compiled if I implement method in .h file. I happened to find out…
LNK2019
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unresolved external errors

I have the following .h and .cpp files If i have to I will include the full codes of the function definitions When i compile my program i get the errors shown at the end hash.h #define BUCKETS 64 #define B_ENTRIES 50000 int…
John
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Compiling mex files with C++ through matlab: header files are not accessible

I need to compile a mex file which is written in C++ (VS 2008) with Matlab 2009. If I compile with VS 2008 directly, it seems Matlab is not compatible and the error is: //Invalid MEX-file So I tried to comile with Matlab directly using MEX…
rainbow
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Linker errors in Visual C++ LNK2005, LNK2019 - not sure why

I'm trying to build code from the nVidia 9.5 SDK but I get the following linker errors: >1>NV_D3DCommonDX9U.lib(NV_StringFuncs.obj) : error LNK2005: "class std::basic_istream > & __cdecl std::getline
meds
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