Error LNK2019

I am new to VC++ 2013 Ultimate.
I've got a program which are executable that run on Visual Studio 2013 Express version.
But when i run, it comes out with the following errors:
1>cmbs_api.obj : warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/SAFESEH' specification
1>cfr_mssg.obj : error LNK2019: unresolved external symbol __imp__GetMessageA@16 referenced in function _cfr_MQueueGet
1>tcx_log.obj : error LNK2001: unresolved external symbol __imp__GetMessageA@16
1>cfr_mssg.obj : error LNK2019: unresolved external symbol __imp__PeekMessageA@20 referenced in function _cfr_MQueueCleanup
1>cfr_mssg.obj : error LNK2019: unresolved external symbol __imp__PostThreadMessageA@16 referenced in function _cfr_MQueueSend
1>tcx_log.obj : error LNK2001: unresolved external symbol __imp__PostThreadMessageA@16
1>cphysicalport.obj : error LNK2019: unresolved external symbol __imp__wsprintfA referenced in function "public: virtual int __thiscall CPhysicalPort::read(char *,int)" (?read@CPhysicalPort@@UAEHPADH@Z)
1>tcx_util.obj : error LNK2019: unresolved external symbol __imp__RegCloseKey@4 referenced in function _tcx_DetectComPort
1>tcx_util.obj : error LNK2019: unresolved external symbol __imp__RegQueryValueExA@24 referenced in function _tcx_DetectComPort
1>C:\Users\shimons\Documents\DECT base station\Sw\test\cmbs_tcx\Debug\cmbs_tcx.exe : fatal error LNK1120: 6 unresolved externals
Can anybody tell me why?
Urgent, please reply asap.
Thanks,
Shimon.

The symbols are from user32.lib and advapi32.lib.

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OCCI Link problem (Error LNK2019: unresolved external symbol) in VS2012

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John
K4W Dev
That was it! Thank you for the quick response and the clear directions.
Since I see you're with Microsoft, I'd like to point out this step was missing from the set up instructions that come with the SDK installation. This guide says to link kinect10.lib by linking
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Error 106 error LNK2019: unresolved external symbol

Hi there,
I'm trying to instantiate a Factory object to then get a SchemaValidator from createSchemaValidator in C++.
Here's the code snippet:
Tools::Factory<?, Element> *myFactory = new Tools::Factory<? ,Element>();
SchemaValidator<Element> *mySchemaValidator = myFactory->createSchemaValidator(SchValidatorIdType::SchValCXml, NULL);
Basically, I can't seem to find the right template argument which is supposed to be of type "Context" but I can't figure it out. I tried using "xmlctx" but that leads to the following compiling error:
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yeah I checked it but it was set as you said. another interesting thing is I can access "pi" variable in math library. ex:
double a= NI :: CNiMath :: Pi;
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"error LNK2019: unresolved external symbol" help......!

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using namespace oracle::occi;
using namespace std;
int main (void)
Environment *env = Environment::createEnvironment();
(4).I compiled this code and succedded
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------ Build started: Project: Example, Configuration: Debug Win32 ------
Linking...
ok.obj : error LNK2019: unresolved external symbol "public: static class
oracle::occi::Environment * __cdecl oracle::occi::Environment::createEnvironment(enum oracle::occi::Environment::Mode,void *,void * (__cdecl*)(void *,unsigned int),void * (__cdecl*)(void *,void *,unsigned int),void (__cdecl*)(void *,void *))" (?createEnvironment@Environment@occi@oracle@@SAPAV123@W4Mode@123@PAXP6APAX1I@ZP6APAX11I@ZP6AX11@Z@Z) referenced in function _main
C:\Documents and Settings\Frederick\Example\Debug\Example.exe : fatal error LNK1120: 1 unresolved externals
Build log was saved at "file://C:\Documents and Settings\Frederick\Example\Example\Debug\BuildLog.htm"
Example - 2 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
I've tried everything i know. If someone have experienced this error, please let me know the solution. Thanks in advance...
Frederick A

I'm not very new to C++, but I'm new to Visual Studio and working with C++ in MS environment. I'm experiencing the same problem using
Studio 2010 Microsoft Visual Studio 2010
Version 10.0.30319.1 RTMRel
Microsoft Visual C++ 2010 01021-532-2002102-70432
Microsoft Visual C++ 2010
On a Windows 7 Professional 64 bit OS connecting to a 11gR2 (64) database on the same system
I've performed the exact steps in this post and I still receive the link error after performing all the steps identified with the exception that I performed them with respect to the 11gR2 libs & I'm using the libs / includes from this database's home.
I'm sure that I'm missing something trivial, but I'm at a loss to determine what it is. Your assistance in these matters is greatly appreciated.

[need assistance] error LNK2019: unresolved external symbol _CVIXMLLoadDocument

I attempt to load an existing XML file and edit it with Microsoft Visual Studio 2008. Once I add the following function, I get the error LNK2019.
CVIXMLDocument doc = 0;
CVIXMLLoadDocument ("c:\\Temp\\AppTestCmd.xml", &doc);
1>01_cpp_list.obj : error LNK2019: unresolved external symbol _CVIXMLLoadDocument@8 referenced in function _main
1>C:\sc\practice\01_cpp_list\Debug\01_cpp_list.exe : fatal error LNK1120: 1 unresolved externals
I try to add the files and lib mentioned in the following link, but they do not help.
http://forums.ni.com/t5/LabWindows-CVI/unresolved-external-symbol-MSXML-IXMLxxx/m-p/1127380/highligh...
How can I fix it? Thanks!
Here is the code piece. I have only one file in my MSVS project.
============================================================
#include <iostream>
#include <cvixml.h>
#include <msxmldom.h>
#include <cvirte.h> // NI CVI
#include <userint.h> // NI CVI
#include <utility.h>
using namespace std;
int main ()
CVIXMLDocument doc = 0;
CVIXMLLoadDocument ("c:\\Temp\\AppTestCmd.xml", &doc);
return 0;
Solved!
Go to Solution.

Hi,
The link to the following include path has been added by two ways in Microsoft Visual Studio 2008.
C:\Program Files (x86)\National Instruments\CVI2013\toolslib\toolbox
(1) [menu bar, Tools -> Options -> Projects and Solutions -> VC++ Directories -> Include files
(2) [menu bar, Project -> Configuration Properties -> C/C++ -> General -> Additional Include Directories
"cvisupp.lib" and "cviwmain.lib" are added to linker input. I cannot find this one in my NI folders "cvirte.dll".
In my MSVS project, add "cvixml.c" to the Source Files folder and "cvixml.obj" to the Resource Files folder.
With the above settings, it ends up with the following compilation error.
If we roll back to the initial code in the beginning of this discussion thread, we probably just miss one lib file or a few which contains CVIWindows XML function tree.
=========================================================
1>------ Build started: Project: 01_cpp_list, Configuration: Debug Win32 ------
1>Compiling...
1>01_ni_xml.cpp
1>cvixml.c
1>c:\sc2\01_practice_template\01_cpp_list\cvixml.c(153) : error C2440: '=' : cannot convert from 'void *' to 'char *'
1> Conversion from 'void*' to pointer to non-'void' requires an explicit cast
1>c:\sc2\01_practice_template\01_cpp_list\cvixml.c(308) : error C2440: '=' : cannot convert from 'void *' to 'char *'
1> Conversion from 'void*' to pointer to non-'void' requires an explicit cast
1>c:\sc2\01_practice_template\01_cpp_list\cvixml.c(1488) : error C2664: 'MSXML_IXMLDOMNamedNodeMapGetlength' : cannot convert parameter 3 from 'int *' to 'long *'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
1>c:\sc2\01_practice_template\01_cpp_list\cvixml.c(1534) : error C2664: 'MSXML_IXMLDOMNamedNodeMapGetlength' : cannot convert parameter 3 from 'int *' to 'long *'
1> Types pointed to are unrelated; conversion requires reinterpret_cast, C-style cast or function-style cast
1>Generating Code...
1>Build log was saved at "file://c:\sc2\01_practice_template\01_cpp_list\01_cpp_list\Debug\BuildLog.htm"
1>01_cpp_list - 4 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped =========

Error LNK2019: unresolved external symbol

Hi there,
I'm trying to instantiate a Factory object to then get a SchemaValidator from createSchemaValidator.
Here's the code snippet:
Tools::Factory<?, Element> *myFactory = new Tools::Factory<? ,Element>();
SchemaValidator<Element> *mySchemaValidator = myFactory->createSchemaValidator(SchValidatorIdType::SchValCXml, NULL);
Basically, I can't seem to find the right template argument which is supposed to be of type "Context" but I can't figure it out. I tried using "xmlctx" but that leads to the following compiling error:
Error 106 error LNK2019: unresolved external symbol "public: class OracleXml::Parser::SchemaValidator<class Element> * __thiscall OracleXml::Tools::Factory<struct xmlctx,class Element>::createSchemaValidator(enum OracleXml::Parser::SchValidatorIdType,struct xmlctx *)" (?createSchemaValidator@?$Factory@Uxmlctx@@VElement@@@Tools@OracleXml@@QAEPAV?$SchemaValidator@VElement@@@Parser@3@W4SchValidatorIdType@53@PAUxmlctx@@@Z) referenced in function _main TestCppXDK1.obj
I verified I linked my project to oraxml10.lib.
Help?
Thanks!
Message was edited by:
user617632

I'm not very new to C++, but I'm new to Visual Studio and working with C++ in MS environment. I'm experiencing the same problem using
Studio 2010 Microsoft Visual Studio 2010
Version 10.0.30319.1 RTMRel
Microsoft Visual C++ 2010 01021-532-2002102-70432
Microsoft Visual C++ 2010
On a Windows 7 Professional 64 bit OS connecting to a 11gR2 (64) database on the same system
I've performed the exact steps in this post and I still receive the link error after performing all the steps identified with the exception that I performed them with respect to the 11gR2 libs & I'm using the libs / includes from this database's home.
I'm sure that I'm missing something trivial, but I'm at a loss to determine what it is. Your assistance in these matters is greatly appreciated.

Error LNK2019: unresolved external symbol GetBestRoute

Hi all, a C++ beginner here. Basically I am trying to see if my network devices are connected to a specific ip address, without actually using sockets or the connect() function (due to project rules), and after thats done, I retrieve the MAC address
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1>ATLProject1.obj : error LNK2019: unresolved external symbol _GetBestRoute@12 referenced in function "bool __cdecl getMacAddress(unsigned long)" (?getMacAddress@@YA_NK@Z)
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#include "ATLProject1_i.h"
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HRESULT InitializeSecurity() throw()
// TODO: CoInitializeSecurity を呼び出し、サービスのための適切なセキュリティ設定を指定します
// 推奨 - PKT レベルの認証、
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return connection;
int main(int argc, char *argv[])
getMacAddress(INADDR_ANY);
extern "C" int WINAPI _tWinMain(HINSTANCE /*hInstance*/, HINSTANCE /*hPrevInstance*/,
LPTSTR /*lpCmdLine*/, int nShowCmd)
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Am I lacking something or are there some bad settings in my project?
I am using Windows 7 and Visual Studio 2013, and created my code in ATL project.
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Hi MrCapybara,
Since you got this issue when compiling my code which seems that this issue is related to your project, and this forum is to discuss and ask questions about the
Visual Studio Debugging tools, Visual Studio Profiler tools, and Visual Studio Ultimate IntelliTrace.
For development issue about C++, I would recommend you post it in C++ forum to get dedicated supports, you could post another thread there.
Regards.
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Error LNK2019; unresolved external symbol _SDL_SetVideoMode

I had included SDL2-2.0.3 and i have copied the .dll files and did all the setup for the sdl in the directories and linker, but i get these errors....
error LNK2019; unresolved external symbol _SDL_SetVideoMode referenced in function _SDL_main
error LNK2019; unresolved external symbol _SDL_Flip referenced in function _SDL_main
error LNK2019; unresolved external symbol _SDL_WM_SetCaption referenced in function _SDL_main
error LNK1120:3 unresolved externals
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SDL is not a Microsoft or standard library. You should check with people that know the library, but the errors make it look like you are omitting a .lib file.

VS8: Build Solution Error LNK2019

------ Build started: Project: HelloWorld, Configuration: Debug Win32 ------
Linking...
HelloWorld.obj : error LNK2019: unresolved external symbol "public: static class oracle::occi::Environment * __cdecl oracle::occi::Environment::createEnvironment(enum oracle::occi::Environment::Mode,void *,void * (__cdecl*)(void *,unsigned int),void * (__cdecl*)(void *,void *,unsigned int),void (__cdecl*)(void *,void *))" (?createEnvironment@Environment@occi@oracle@@SAPAV123@W4Mode@123@PAXP6APAX1I@ZP6APAX11I@ZP6AX11@Z@Z) referenced in function _main
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HelloWorld - 2 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
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You probably either missed the OCCI library path or you didn't add 'oraocci10.lib' to the list of linker's input files.
I have VS7 installed, so I'm not sure VS8 has the same menus, but ...
Go to Tools -> Options. On the Options dialog, open Projects -> VC++ Directories and add the OCCI library path to 'Library Files'
Open your project and go to Project -> Properties. On Properties dialog, open Linker -> Input and select the OCCI library you need (oraocci10.lib / oraocci10d.lib for debug) in Additional Dependencies.
Please note: menu names may not match perfectly, I have translated them from the Italian version of VS7....
Riccardo

Error LNK2019 occurred when compiling with CS6 on Win

When i try to use GetMousePosition() in my code, i got bellowing link error when compiling in VS2010.
Is there any library i can include to resolve it?
error LNK2019: unresolved external symbol __imp__GetCursorPos@4 referenced in function "struct tagPOINT __cdecl GetMousePosition(void)" (?GetMousePosition@@YA?AUtagPOINT@@XZ)
Thanks,
Aidy

Steps to reproduce the problem:
1. New an empty project with name "test" using DollyXs on Windows;
2. In testActionComponent.cpp, modify DoAbout() to be
void testActionComponent::DoAbout()
GetMousePosition();
3. Build the project.
Then, we will get bellowing link error
1> Creating library ..\..\..\build\win\objD\test/test.lib and object ..\..\..\build\win\objD\test/test.exp
1>testActionComponent.obj : error LNK2019: unresolved external symbol __imp__GetCursorPos@4 referenced in function "private: void __thiscall testActionComponent::DoAbout(void)" (?DoAbout@testActionComponent@@AAEXXZ)
1>..\debug_cs6\test.sdk.pln : fatal error LNK1120: 1 unresolved externals
There is no such link error in the sdk sample BasicDragDrop.sdk.vcxproj, but i cannot find any special setting in its project property.
Any suggestion will be appreciated.
Thanks,
Aidy

"error LNK2019: unresolved external sym..." after porting SDKFilehelper function from CS4 to CS3

The following code is running with Indesign CS4:
#include "SDKFileHelper.h"
SDKFileSaveChooser filesaveChooser;filesaveChooser.ShowDialog();
It doesn't compile with Indesign SDK CS3, i get a LNK2019 unresolved external symbol for every call of ::SDKFileHelper.
Any suggestions?

Thank you very much, compiled successfully!

LNK2019 Error, Works fine in cmd, but not visual studio

Hello.
I'm getting this error. I've looked online and it says this happens when something is declared but not defined, however I don't see any issues like that. The most annoying part is that it compiles fine in cmd. I'm not sure why Visual Studio 2013 is giving
me issues
Errors
Error 1
error LNK2019: unresolved external symbol "public: __thiscall Shader::Shader(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??0Shader@@QAE@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) referenced in function _main
Error 2
error LNK2019: unresolved external symbol "public: virtual __thiscall Shader::~Shader(void)" (??1Shader@@UAE@XZ) referenced in function _main
Error 3
error LNK1120: 2 unresolved externals
main.cpp
#include <iostream>
#include "shader.h"
int main(int argc, char** argv)
Shader shader("./res/basicShader");
return 0;
shader.h
#ifndef SHADER_H
#define SHADER_H
#include <string>
class Shader
public:
Shader(const std::string& fileName);
virtual ~Shader();
protected:
private:
#endif //SHADER_H
shader.cpp
#include "shader.h"
#include <iostream>
#include <fstream>
#include <string>
Shader::Shader(const std::string& fileName)
Shader::~Shader()

Hi Arend Peter,
Since this forum is to discuss the VS IDE usage, based on your description, it would be the VC++ development issue, to help you resolve this issue as soon as possible, I suggest you post this issue to the VC++ language development forum,
I think you would get dedicated support there.
The VC++ forum link:
https://social.msdn.microsoft.com/Forums/vstudio/en-US/home?forum=vcgeneral
Best Regards,
Jack
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Error LNK2019

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