Unresolved Externals [closed]
Hi,
I am new to the group and OpenCV. I am coding the tutorial found in http://docs.opencv.org/doc/tutorials/... I am setting the Configuration: to Debug and Platform: to x64. Here is what the code in Visual C++ looks like:
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
using namespace cv;
using namespace std;
int main( int argc, char** argv )
{
if( argc != 2)
{
cout <<" Usage: display_image ImageToLoadAndDisplay" << endl;
return -1;
}
Mat image;
image = imread(argv[1], IMREAD_COLOR); // Read the file
if(! image.data ) // Check for invalid input
{
cout << "Could not open or find the image" << std::endl ;
return -1;
}
namedWindow( "Display window", WINDOW_AUTOSIZE ); // Create a window for display.
imshow( "Display window", image ); // Show our image inside it.
waitKey(0); // Wait for a keystroke in the window
return 0;
}
I also made sure that the following library directories were added to the linker: C:\OpenCV\opencv\build\x64\vc12\staticlib C:\OpenCV\opencv\build\x64\vc12\lib
and the following libraries were added to Additional Dependencies for the Debug platform: opencv_core249d.lib opencv_imgproc249d.lib opencv_highgui249d.lib opencv_ml249d.lib opencv_video249d.lib opencv_features2d249d.lib opencv_calib3d249d.lib opencv_objdetect249d.lib opencv_contrib249d.lib opencv_legacy249d.lib opencv_flann249d.lib
and the following libraries were added to Additional Dependencies for the Release platform: opencv_core249.lib opencv_imgproc249.lib opencv_highgui249.lib opencv_ml249.lib opencv_video249.lib opencv_features2d249.lib opencv_calib3d249.lib opencv_objdetect249.lib opencv_contrib249.lib opencv_legacy249.lib opencv_flann249.lib
When I tried to build this C++ file using the x64 platform, I got 116 unresolved externals (error LNK2019). Is there something I am missing?
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this won't solve it , but you want to link either the staticlibs or the dynamic ones, not both. (library directories)
A guess, did you add the correct directories to your PATH variable?
Thanks, everyone. I liked to the wrong library directory - I should have linked to C:\OpenCV\opencv\build\x64\vc11\lib, not C:\OpenCV\opencv\build\x64\vc12\lib. And yes, berak, I should have linked only to the dynamic libraries. Once I only linked to C:\OpenCV\opencv\build\x64\vc11\lib, the project linked without any errors.