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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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558 questions
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Linking failure of a program with templated main

LNK2019 unresolved external symbol _main referenced in function "int __cdecl invoke_main(void)" (?invoke_main@@YAHXZ) I can compile my program, but can't run it. It's a windows console application, and it's set as such in Linker -> System ->…
JC Denton
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__cdecl LNK 2019 VS2010 C

I am trying to implement a few simple functions in C (VS2010). Should be very easy. BUT, I am receiving error LNK2019: unresolved external symbol "1>test01.obj : error LNK2019: unresolved external symbol "int __cdecl Ex2(int,int)" (?Ex2@@YAHHH@Z)…
Max K.
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Which library I need to add? : error LNK2019

Error 20 error LNK2019: unresolved external symbol "public: __thiscall CAnyseeUSBTVControllerDlg::CAnyseeUSBTVControllerDlg(class CWnd *)" (??0CAnyseeUSBTVControllerDlg@@QAE@PAVCWnd@@@Z) referenced in function "int __cdecl Init(void)" …
CarolusPl
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error LNK2019: unresolved external symbol vs2013

I get this error, but I don't know how to fix it. I'm using Visual Studio 2013. code -----DateUtils.h #pragma once #include class DateUtils { public: DateUtils(); ~DateUtils(); static time_t str2time_t(const std::string&,…
soko8
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Unexpected LNK 2019 in C++ class

I'm encountering the following linker issue when I try to build my project. I've had a look through the other posts here and as far as I can see, the only externals I'm using are members of standard (and identified with std::), or primitives. Is…
Minothor
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Unresolved external symbol LNK2001, LNK2011, LNK2019

I have no idea what's wrong with my code. I have include guards in all my header files. Since there is quite some code and I'd like to keep it private the question is rather how I'd go about solving these errors. Error 1 error LNK2001: unresolved…
user-1289389812839
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SDL + C++ Error: LNK2019 unresolved external symbol_SDL_main referencedin function

I Google-d this problem and viewed at least 20 threads about this and tried different solutons but none worked out.This code is in SDL 2.0.3 in Visual Studio 2013 Express. Here is my code: #include #include #include…
Morga121
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error LNK2001: unresolved external symbol "class"

I've a header file having a "extern class definition" in it. Both these header file and class are in different C++ assembly. Now there is a class in different C++ assembly which is trying to access this "extern" class functions but there are all…
Bobby
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C++ error LNK2019 can not run code

Dear developers c++, I the next problem: trying to compile my project i'm getting the "error LNK2019: unresolved external symbol" even though all of the declared methods in headers are defined in the .cpp I attach my code together with the post.…
user3678613
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Various linker errors in visual studio 2012

I'm working on a school assignment for which we given some .lib files. I added them in the linker, and still I'm getting linker errors. When I changed those to a different path, I get a file not found error instead. My errors are: Error 53 error…
Cinaed666
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LNK2019 Error: Project converterd in Visual Studio 2010 but can not compile it

I need to compile a project which is automatically created from a simulation programm. I tried to compile it with Microsoft Visual Studio C++ 2010. After converting the project i have the following error LNK2019: 1>libcarmaker.a(DataDict.o) :…
newuser
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Installing GLFW 3.0 not working Visual Studio

I'm trying to create a GLFW project, but I'm getting LNK2019 errors with the basic setup. I've downloaded the latest binary (glfw-3.0.bin.WIN32.zip) to a folder. I've created a new, empty console project. Within VC++ Directories, I've added the…
user868935
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can't solve this error c++ , although i have added the header file

this is the error i am getting Error 13 error LNK2019: unresolved external symbol "public: bool __thiscall ConfigInfo::GetDefaultTargetConfigSettings(class ATL::CStringT > > const…
Onkar Nirhali
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C++ lnk2019 and lnk 2020 yes it's in the right format

Here's my code and the errors I'm receiving - any help would be appreciated. There's something wrong with getNextAcountNumber. I have tried to assign the value of account ID but it has not worked since it is a private member. Error 1 error…
walvering
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3 answers

C++ error lnk 2019

I was just trying to see if I can read a text file and display but I have this error: 2 error LNK2019: unresolved external symbol "public: void __thiscall WeatherReport::displayReport(void)" (?displayReport@WeatherReport@@QAEXXZ) referenced in…
Meene
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