C Linker Error Lnk2019
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Visual C++ Error Lnk2019
just like you, helping each other. Join them; it only takes a minute: Sign up How to solve the error LNK2019: unresolved external symbol - function? up vote 36 down vote favorite 10 I get this error,
Error Lnk2019 Unresolved External Symbol Winmain@16 Referenced In Function ___tmaincrtstartup
but I don't know how to fix it. I'm using Visual Studio 2013. I make the solution name MyProjectTest This is the structure of my test solution: -function.h #ifndef MY_FUNCTION_H #define MY_FUNCTION_H int multiple(int x, int y); #endif -function.cpp #include "function.h" int multiple(int x, int y){ return x*y; } -main.cpp #include
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Error Lnk2019 Unresolved External Symbol __declspec(dllimport)
questions you might have Meta Discuss the workings and policies error lnk2019 unresolved external symbol fortran of this site About Us Learn more about Stack Overflow the company Business Learn more about error lnk2019 unresolved external symbol void __cdecl hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack http://stackoverflow.com/questions/19886397/how-to-solve-the-error-lnk2019-unresolved-external-symbol-function Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up “error LNK2019: unresolved external symbol” error in Visual Studio 2010 up vote 2 down vote favorite 1 I'm trying to compile and run a C code that is using http://stackoverflow.com/questions/23276399/error-lnk2019-unresolved-external-symbol-error-in-visual-studio-2010 libsndfile library for sound files processing. I have added the header file using this path: project's Properties (in C/C++ -> General -> Additional Include Directories) Also i have linked the library using this path: Project Properties -> Linker -> Input -> Additional Dependencies. But while debugging, i get the following errors: 1>sil.obj : warning LNK4075: ignoring '/EDITANDCONTINUE' due to '/INCREMENTAL:NO' specification 1>sil.obj : error LNK2019: unresolved external symbol _sf_write_sync referenced in function _main 1>sil.obj : error LNK2019: unresolved external symbol _sf_write_double referenced in function _main 1>sil.obj : error LNK2019: unresolved external symbol _sf_close referenced in function _main 1>sil.obj : error LNK2019: unresolved external symbol _sf_read_double referenced in function _main 1>sil.obj : error LNK2019: unresolved external symbol _sf_open referenced in function _main 1>c:\users\anam\documents\visual studio 2010\Projects\silence\Debug\silence.exe : fatal error LNK1120: 5 unresolved externals Can someone please identify the problem here? I'm new at using Visual Studio and I really need help! c visual-studio-2010 lnk2019 libsndfile share|improve
Support Answers MathWorks Search MathWorks.com MathWorks Answers Support MATLAB Answers™ MATLAB Central Community Home MATLAB Answers File Exchange Cody Blogs Newsreader Link Exchange ThingSpeak Anniversary Home Ask Answer Browse More Contributors Recent https://www.mathworks.com/matlabcentral/answers/107106-error-lnk2019-unresolved-external-symbol-when-compiling-mex Activity Flagged Content Flagged as Spam Help MATLAB Central Community Home MATLAB Answers File Exchange Cody Blogs Newsreader Link Exchange ThingSpeak Anniversary Home Ask Answer Browse More Contributors Recent Activity Flagged Content Flagged as Spam Help Trial software Tim (view profile) 1 question 2 answers 1 accepted answer Reputation: 5 Vote1 error LNK2019: unresolved external symbol when compiling MEX Asked by Tim Tim (view profile) 1 question error lnk2019 2 answers 1 accepted answer Reputation: 5 on 21 Nov 2013 Latest activity Commented on by hassan mahmood hassan mahmood (view profile) 4 questions 3 answers 0 accepted answers Reputation: 3 on 20 May 2014 Accepted Answer by Tim Tim (view profile) 1 question 2 answers 1 accepted answer Reputation: 5 589 views (last 30 days) 589 views (last 30 days) I'm trying to compile some files error lnk2019 unresolved into MEX and I get a linkage error.I have:helloworld.cpp which includes gateway functionftdi.h class declarationftdi.cpp a source fileFTD2XX.h and FTD2XX.lib a library and a headerAll files are in the same folder and this folder is my current working directory in MATLAB.I'm using MS VS2010 and MATLAB R2013a on a 64bit Windows 7. I set up the compiler using mex -setup and was able to create and run some test MEX files.As I understand, I need to compile both helloworld.cpp and fdti.cpp when I runmex helloworld.cpp fdti.cpp I get:ftdi.obj : error LNK2019: unresolved external symbol __imp_FT_ListDevices referenced in function "public: int __cdecl ftdi::GetDeviceCount(void)" (?GetDeviceCount@ftdi@@QEAAHXZ) ftdi.obj : error LNK2019: unresolved external symbol __imp_FT_Open referenced in function "public: int __cdecl ftdi::OpenDevice(int)" (?OpenDevice@ftdi@@QEAAHH@Z) and more of similar errors.ftdi::GetDeviceCount(void) andftdi::OpenDevice(int) are functions in ftdi.cppI also tried:mex helloworld.cpp and got similar errors. When I tried:mex -IC:\Users\tnosov\Documents\MATLAB\newtest20nov helloworld.cpp this is the path to where all my files are located and I got the same errors.I've been stuck with this problem for many days now, I tried many other things I found here and in other places on the internet, but nothing helps. I'll be thankful for any suggestions and comments.Thank you!Timhere's helloworld.cpp:#include