Error Lnk2019 Unresolved External Symbol _cvloadimage
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C++ Error Lnk2019 Unresolved External Symbol
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Error Lnk2019 Unresolved External Symbol Winmain@16 Referenced In Function ___tmaincrtstartup
up OpenCv unresolved external symbol error in Visual Studio up vote 0 down vote favorite I have linked to the libraries I want to use and added the header files to my project. And the code doesn't show any errors in red squiggle but when I try to run it, it gives me the following error: Error 1 error LNK2001: unresolved external symbol error lnk2019 unresolved external symbol visual studio 2010 _cvDestroyWindow C:\Users\Jos\documents\visual studio 2010\Projects\ocv\ocv\opcv.obj ocv Error 2 error LNK2001: unresolved external symbol _cvWaitKey C:\Users\Jos\documents\visual studio 2010\Projects\ocv\ocv\opcv.obj ocv Error 3 error LNK2001: unresolved external symbol _cvNamedWindow C:\Users\Jos\documents\visual studio 2010\Projects\ocv\ocv\opcv.obj ocv Error 4 error LNK2001: unresolved external symbol _cvLoadImage C:\Users\Jos\documents\visual studio 2010\Projects\ocv\ocv\opcv.obj ocv Error 5 error LNK2001: unresolved external symbol _cvShowImage C:\Users\Jos\documents\visual studio 2010\Projects\ocv\ocv\opcv.obj ocv Error 6 error LNK2001: unresolved external symbol _cvReleaseImage C:\Users\Jos\documents\visual studio 2010\Projects\ocv\ocv\opcv.obj ocv Error 7 error LNK1120: 6 unresolved externals C:\Users\Jos\documents\visual studio 2010\Projects\ocv\Release\ocv.exe ocv And Here is the code: #include "highgui.h" int main(int argc, char **argv) { IplImage* img = cvLoadImage(argv[1],CV_LOAD_IMAGE_UNCHANGED); cvNamedWindow("Example1",CV_WINDOW_AUTOSIZE); cvShowImage("Example1",img); cvWaitKey(0); cvReleaseImage(&img); cvDestroyWindow("Example1"); } c visual-studio-2010 opencv image-processing unresolved-external share|improve this question asked Aug 19 '13 at 12:24 Jos 1181215 Which version of OpenCV are you running? If that's hard to answer, just list the names of the .lib files you're linking. –Jacob Aug 19 '13 at 12:34 it is 246 the latest version –Jos Aug 19 '13 at 12:45 add a comment| 4 Answers 4 active oldest votes up vote 2 down vote accepted Ok it finally works. My PC is a 64-bit system. But the
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta error lnk2019 unresolved external symbol public __thiscall referenced in function _main Discuss the workings and policies of this site About Us Learn more error lnk2019 unresolved external symbol void __cdecl about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack error lnk2019 unresolved external symbol main referenced in function __tmaincrtstartup 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, http://stackoverflow.com/questions/18313769/opencv-unresolved-external-symbol-error-in-visual-studio helping each other. Join them; it only takes a minute: Sign up OpenCV won't compile due to unresolved externals — LNK2019 up vote 8 down vote favorite 2 I am brand new to OpenCV and have been trying to set it up in Visual Studios 2010 Ultimate. I have followed the documentation exactly, and linked the files as http://stackoverflow.com/questions/10472393/opencv-wont-compile-due-to-unresolved-externals-lnk2019 it said. Here are the additional libraries that I am using: opencv_core231d.lib opencv_imgproc231d.lib opencv_highgui231d.lib opencv_ml231d.lib opencv_video231d.lib opencv_features2d231d.lib opencv_calib3d231d.lib opencv_objdetect231d.lib opencv_contrib231d.lib opencv_legacy231d.lib opencv_flann231d.lib And all of their Release counterparts. However, when I try to debug & compile the sample code given to me, I get the following errors. (I read somewhere that you have to compile and publish the project in order for it to work properly? Is that true as well?) 1>------ Build started: Project: openCVTest, Configuration: Debug Win32 ------ 1>Build started 5/6/2012 10:39:03 AM. 1>InitializeBuildStatus: 1> Touching "Debug\openCVTest.unsuccessfulbuild". 1>ClCompile: 1> All outputs are up-to-date. 1>ManifestResourceCompile: 1> All outputs are up-to-date. 1>openCVTest.obj : error LNK2019: unresolved external symbol _cvWaitKey referenced in function _main 1>openCVTest.obj : error LNK2019: unresolved external symbol "void __cdecl cv::imshow(class std::basic_string
Windows Desktop Development > Visual C++ Question 0 Sign in to vote hi, in visual studio 2010 using c++ when click to run the error is "unable to start programm https://social.msdn.microsoft.com/Forums/vstudio/en-US/d4f80fd3-5b08-46e6-a540-46fe2806c9c3/problem-in-visual-studio-using-c?forum=vcgeneral 'c:\Projects\gg\Debug\gg.exe' the system connot find the file specified" Tuesday, February 26, 2013 7:37 AM Reply | Quote Answers 0 Sign in to vote thanks, when i replay the option of opencv the programme work. thanks. http://www.cplusplus.com/forum/general/71110/ Marked as answer by Elegentin XieMicrosoft contingent staff, Moderator Wednesday, March 06, 2013 5:43 AM Wednesday, February 27, 2013 10:28 AM Reply | Quote All replies 0 Sign in to vote Hi, Please look error lnk2019 the following link,very similar to your issue. http://stackoverflow.com/questions/6590482/visual-c-2010-error-the-system-cannot-find-the-file-specifiedGopinath.S Tuesday, February 26, 2013 8:54 AM Reply | Quote 0 Sign in to vote Right click on the project and select "set as startup project". Proposed as answer by Solid Mercury Tuesday, February 26, 2013 8:59 AM Tuesday, February 26, 2013 8:57 AM Reply | Quote 0 Sign in to vote Maybe the program was not compiled. Go to BUILD menu, error lnk2019 unresolved then select Rebuild Solution. Then go to VIEW, Output. You should see no errors, and a line like this: ========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ========== What do you see in Output windows after rebuilding? Tuesday, February 26, 2013 9:45 AM Reply | Quote 0 Sign in to vote Isee this in the output : ---- Rebuild All started: Project: gg, Configuration: Debug Win32 ------ 1> stdafx.cpp 1> gg.cpp 1>gg.obj : error LNK2019: unresolved external symbol _cvDestroyWindow referenced in function "int __cdecl Main(int,char * *)" (?Main@@YAHHPAPAD@Z) 1>gg.obj : error LNK2019: unresolved external symbol _cvReleaseImage referenced in function "int __cdecl Main(int,char * *)" (?Main@@YAHHPAPAD@Z) 1>gg.obj : error LNK2019: unresolved external symbol _cvWaitKey referenced in function "int __cdecl Main(int,char * *)" (?Main@@YAHHPAPAD@Z) 1>gg.obj : error LNK2019: unresolved external symbol _cvShowImage referenced in function "int __cdecl Main(int,char * *)" (?Main@@YAHHPAPAD@Z) 1>gg.obj : error LNK2019: unresolved external symbol _cvNamedWindow referenced in function "int __cdecl Main(int,char * *)" (?Main@@YAHHPAPAD@Z) 1>gg.obj : error LNK2019: unresolved external symbol _cvLoadImage referenced in function "int __cdecl Main(int,char * *)" (?Main@@YAHHPAPAD@Z) 1>MSVCRTD.lib(crtexe.obj) : error LNK2019: unresolved external symbol _main referenced in function ___tmainCRTStartup 1>c:\users\win7\documents\visual studio 2010\Projects\gg\Debug\gg.exe : fatal error LNK1120: 7 unresolved externals ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ======
then I am trying to run this code: // OpenCV_Helloworld.cpp : Defines the entry point for the console application. // Created for build/install tutorial, Microsoft Visual C++ 2010 Express and OpenCV 2.1.0 #include