Error Lnk2019 Unresolved External Symbol Visual Studio 2012
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Error Lnk2019 Unresolved External Symbol Visual Studio 2010
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C++ Error Lnk2019 Unresolved External Symbol
Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping error lnk2019 unresolved external symbol public each other. Join them; it only takes a minute: Sign up Ms Visual Studio 2012, “unresolved external symbol” up vote 1 down vote favorite I am trying to compile a C++ application through Microsoft Visual Studio 2012. I have linked the Boost, Jni, Acml libraries to the application. When I click on rebuild, the compilation does not error lnk2019 unresolved external symbol winmain@16 referenced in function ___tmaincrtstartup finish. This is the first error I get: Error 28 error LNK2019: unresolved external symbol _sgesdd referenced in function "void __cdecl testLapackDGESDD_EASY(void)" (?testLapackDGESDD_EASY@@YAXXZ) C:\Users\DavideChicco\Documents\Visual Studio 2012\Projects\Solution\mainConsole.obj Do you have any idea of what this is related to? Thanks c++ visual-studio lnk2019 unresolved-external share|improve this question edited Oct 25 '13 at 1:12 EJP 197k17140248 asked Oct 18 '13 at 15:22 DavideChicco.it 33552051 See this question; you're most likely not linking LAPACK. –Angew Oct 18 '13 at 15:24 1 I miss "too localised" –Lightness Races in Orbit Oct 18 '13 at 15:57 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote Your compilation seems to have finished, but the error happens during linking: the definition of the function _sgesdd called in testLapackDGESDD_EASY is not found. So - either this function is defined in an external dll, and you need to add the lib in your solution, - or this function is supposed to be defined in your project, and you need to implement its definit
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Error Lnk2019 Unresolved External Symbol Public __thiscall Referenced In Function _main
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Error Lnk2019 Unresolved External Symbol Main Referenced In Function __tmaincrtstartup
us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just http://stackoverflow.com/questions/19453240/ms-visual-studio-2012-unresolved-external-symbol like you, helping each other. Join them; it only takes a minute: Sign up Visual Studio 2012 - “Error LNK2019 unresolved external symbol” when attempting to include .lib up vote 0 down vote favorite I am trying to include a .lib file in my Visual Studio 2012 C++ project. The library is the pHash project to http://stackoverflow.com/questions/18826613/visual-studio-2012-error-lnk2019-unresolved-external-symbol-when-attempting be specific. I have added the header file for the project to Project->Properties->Configuration Properties->VC++ Directories->Includes and the .lib file's folder to Project->Properties->Configuration Properties->VC++ Directories->Library Directories. pHash.lib has been added to the list of dependencies inProject->Properties->Configuration Properties->Linker->Input->Additional Dependencies. But even though I have done all of this I still get this error when trying to use the libraries: error LNK2019: unresolved external symbol "int __cdecl ph_dct_imagehash(char const *,unsigned __int64 &)" (?ph_dct_imagehash@@YAHPBDAA_K@Z) referenced in function _main. My code looks as follows: #include
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Programming Boards C++ Programming new to visual C++ - "unresolved external symbol" linking errors Getting started with C or C++ | C Tutorial | C++ Tutorial | C and C++ FAQ | Get a compiler | Fixes for common problems Thread: new to visual C++ - "unresolved external symbol" linking errors Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 04-13-2006 #1 ubermensch View Profile View Forum Posts Registered User Join Date Jan 2006 Posts 13 new to visual C++ - "unresolved external symbol" linking errors I've been programming for a while now, but almost exclusively in a linux environment. I've ported some code that I've been using in linux to windows for a program that I'm writing, and it all compiles cleanly, but fails whiles linking. I'm very new to visual studio and visual c++, and I'm sure the linking problem i have is very simple to fix, but i can't get any results by fiddling around with it. The errors i'm getting are all "unresolved external symbol" errors, and they're all of functions that I've written and are in the source files that I've ported (I was having the same linking errors with winsock functions, but i just needed to add the ws2_32.lib as a dependency in the project). All the needed source files/headerfiles are added to my project. The code that I've ported is in a separate folder from my project's folder (which is just a simple test program for the ported code), and is also in a separate folder from their header files. I'm sure there's something else that needs to be done, but I'm not sure what or where in all of VS's menus. Any help would be really appreciated. Btw, I'm using Visual Studio .NET 2002 04-13-2006 #2 hk_mp5kpdw View Profile View Forum Posts Registered User Join Date Jan 2002 Location Northern Virginia/Washington DC Metropolitan Area Posts 3,817 Are you compiling them as a mix of C/C++ source files? If that was the case, then compilation would succeed but when linking there could be problems due to mangling of function names. What are the specific errors you are getting (cut and paste them if possible)? Also explain your directory structure; all the files (headers and source code) and where they are. "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, the