Error Lnk2019 In Release Mode
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and error lnk2019 unresolved external symbol winmain@16 referenced in function ___tmaincrtstartup policies of this site About Us Learn more about Stack Overflow the
Error Lnk2019 Unresolved External Symbol C++
company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users error lnk2019 unresolved external symbol visual studio 2010 Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes
Error Lnk2019 Unresolved External Symbol __declspec(dllimport)
a minute: Sign up Error in Release mode but not in Build mode up vote 1 down vote favorite I recently made a project using opencv and c++ in visual 2008 When i build the project in Debug mode - i don't face any issues - but when i build it in release mode i get the following errors: 1>test.obj : error error lnk2019 unresolved external symbol _main referenced in function ___tmaincrtstartup LNK2001: unresolved external symbol _cvHaarDetectObjects 1>test.obj : error LNK2001: unresolved external symbol _cvCvtColor 1>test.obj : error LNK2001: unresolved external symbol _cvCreateImage 1>test.obj : error LNK2001: unresolved external symbol _cvDestroyWindow 1>test.obj : error LNK2001: unresolved external symbol _cvWaitKey 1>test.obj : error LNK2001: unresolved external symbol _cvGetSize 1>test.obj : error LNK2001: unresolved external symbol _cvReleaseCapture 1>test.obj : error LNK2001: unresolved external symbol _cvCreateMemStorage 1>test.obj : error LNK2001: unresolved external symbol _cvClone 1>test.obj : error LNK2001: unresolved external symbol _cvNamedWindow 1>test.obj : error LNK2001: unresolved external symbol _cvQueryFrame 1>test.obj : error LNK2001: unresolved external symbol _cvLoad 1>test.obj : error LNK2001: unresolved external symbol _cvRectangle 1>test.obj : error LNK2001: unresolved external symbol _cvCreateCameraCapture 1>test.obj : error LNK2001: unresolved external symbol _cvGetSeqElem 1>test.obj : error LNK2001: unresolved external symbol _cvShowImage c++ visual-studio-2008 visual-c++ opencv share|improve this question asked Jul 27 '11 at 18:06 Tempo 101314 How big did you allow this project to get before you tried building in the release mode? –Beta Jul 27 '11 at 18:09 add a comment| 3 Answers 3 active oldest votes up vote 7 down vote accepted Check Linker->Input->Additi
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more
Error Lnk2019 Unresolved External Symbol Fortran
about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges
Error Lnk2019 Unresolved External Symbol Public __thiscall Referenced In Function _main
Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each error lnk2019 unresolved external symbol void __cdecl other. Join them; it only takes a minute: Sign up MSVC - C++ - Release build failed - linker error up vote 2 down vote favorite HI, If I am trying to build and link my app in http://stackoverflow.com/questions/6849092/error-in-release-mode-but-not-in-build-mode Release mode, i got linker error: Error 72 error LNK2001: unresolved external symbol "public: __thiscall MyModels::MT6::MT6(double)" (??0MT6@MyModels@@QAE@N@Z) C:\Martin\Programing\WoknaTest\WoknaTest\DXForm.obj WoknaTest In debug mode everything works fine.... what could be possibly wrong ? Thanks c++ visual-c++ share|improve this question asked Mar 30 '11 at 10:48 Perry 162 Ok.. i found problem.. one of my *.h files was incorectly set as C/C++ *.cpp file :/ Even if extension was *.h –Perry Mar 30 '11 at 15:46 add a comment| http://stackoverflow.com/questions/5485298/msvc-c-release-build-failed-linker-error 3 Answers 3 active oldest votes up vote 5 down vote Judging from the fact that it builds successfully in the debug configuration, my first suggestion would be to check the additional dependencies supplied to the linker. This setting would be Additional Dependencies setting under Project -> Properties -> Configuration Properties -> Linker -> Input. Make sure this setting matches what is under the debug configuration, assuming there aren't debug-build-specific library names. share|improve this answer answered Mar 30 '11 at 10:57 Peter Huene 5,14322431 I am not using any special libraries... –Perry Mar 30 '11 at 11:28 @Perry: Where is MyModels::MT6::MT6 defined then? It's not under an #ifdef DEBUG or some such, is it? –Peter Huene Mar 30 '11 at 11:30 1 No.. it has only #ifndef VOXEL_LOADER_H #define VOXEL_LOADER_H ... #endif –Perry Mar 30 '11 at 11:35 @Perry: And the .obj / .lib the definition is being compiled into is being passed to the linker when you're building WonkaTest? –Peter Huene Mar 30 '11 at 11:38 all *.obj files are compiled in /Release dir –Perry Mar 30 '11 at 11:44 add a comment| up vote 3 down vote I'd check in the Project settings that all the .lib includes and dlls are included in both Release and Debug modes. The solution to this is
get linking errors LNK2019 external symbol Something like: qt4client.obj : error LNK2019: unresolved external symbol "public: static struct QMetaObject const TelEngine::QtWindow::staticMetaObject" (?staticMetaObject@QtWindow@TelEngine@@2UQMetaObje ct@@B) http://www.qtcentre.org/archive/index.php/t-42256.html referenced in function "public: static class QString __cdecl TelEngine::QtWindow::tr(char const *,char const http://www.cplusplus.com/forum/beginner/74210/ *)" (?tr@QtWindow@TelEngine@@SA?AVQString@@PBD0@Z) But debug mode works fine. Please explain what i forgot? VS2008, QT4.6 joyer837th June 2011, 22:01Hmm, maybe the moc file generation rules have gone out of sync... Try updating them, by first removing one letter from the Q_OBJECT macro (e.g. Q_OBJEC) and then save the header file. Now error lnk2019 the mocing rules should have been automatically removed. Then fix the macro and save again, now the rules should have been added automatically. Then try compiling again. Santosh Reddy8th June 2011, 00:29looks like namespace is not being included in release mode. function "tr(char const *,char const *)" is being searched in namespace "TelEngine", Are you sure tr() exists in "TelEngine" namespace stepchik8th June error lnk2019 unresolved 2011, 08:58Hmm, maybe the moc file generation rules have gone out of sync... Try updating them, by first removing one letter from the Q_OBJECT macro (e.g. Q_OBJEC) and then save the header file. Now the mocing rules should have been automatically removed. Then fix the macro and save again, now the rules should have been added automatically. Then try compiling again. Thanks for your answer. I try to compile - nothing. looks like namespace is not being included in release mode. function "tr(char const *,char const *)" is being searched in namespace "TelEngine", Are you sure tr() exists in "TelEngine" namespace Thanks for your answer. Hm how can it be that in debug mode some function is part of namespace but in release this function is't? Look like you are right. I have some LNK2019 message "anonymous namespace" in another project customtext.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual void * __thiscall TelEngine::QtCustomWidget::qt_metacast(char const *)" (__imp_?qt_metacast@QtCustomWidget@TelEngine@@UAEP AXPBD@Z) referenced in function "public: virtual void * __thiscall `anonymous namespace'::CustomTextEdit::qt_metacast(char const *)" (?qt_metacast@CustomTextEdit@?A0x2fb7e806@@UAEPAXP BD@Z) customtext.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual int __thiscall TelEngine::QtCustomWidget::qt_metacall(enum Q
I do not have a great understanding of project properties/settings etc but from searching I think it is something with these that is causing the problem. I have two projects in my solution, one of which is a static library. I am using visual studio 2008. I recieve 89 LNK2001 errors when compiling in release mode. Example: Player.obj : error LNK2001: unresolved external symbol "public: void __thiscall AABB::SetMax(class Vector2D &)" (?SetMax@AABB@@QAEXAAVVector2D@@@Z) Player.obj : error LNK2001: unresolved external symbol "public: __thiscall AABB::~AABB(void)" (??1AABB@@QAE@XZ) Player.obj : error LNK2001: unresolved external symbol "public: __thiscall AABB::AABB(void)" (??0AABB@@QAE@XZ) Thing I have checked so far: The settings for both debug and release mode appear to be mostly the same. There is nothing different in these that I can figure out would affect the build. However I do not have a vast knowledge of this so I am open to suggestions. I dont know if this should be the case but under Linker->Input->Additional Dependancies both setting for debug and release do not have any specified. I have been at this for hours and Im very puzzled, my goal is to create a 'stand alone' version of my program to be used on machines without the visual studio framework. Any help or suggestions are greatly appreciated Phantompig Jun 28, 2012 at 8:19pm UTC bartoli (271) Are the unresolved symbols about code of the exe project, or about code of the lib while linking the exe? Or maybe the lib project is configured to be built as an application in release mode so it cannot find some code? Are you linking the exe with the last version of the lib? If you set you lib projetc as a dependency of the exe project in the project dependency dialog, the exe should automatically link the compiled lib file Jun 28, 2012 at 8:37pm UTC phantompig (20) The unresolved errors come when the non library project compiles. I don't really understand everything you've said,can you explain what I need to check to test some of your suggestions? Jun 29, 2012 at 8:33am UTC phantompig (20) Player.obj : error LNK2001: unresolved external symbol "public: void __thiscall AABB::SetMax(class Vector2D &)" (?SetMax@AABB@@QAEXAAVVector2D@@@Z) The statements all follow the same format: NonLibrary.obj error LNK2001: unresolved external symbol "call to library function" I've checked to make sure the library is compiling as a static library and not an exe. Suggestions? Jun 29, 2012 at 10:00am UTC gelatine (256) go to project->properties->configuartion properties->linker->input->additional depencies. edit that and put all librarys in there that you are using.