visual-studio-2010 - LNK2019 : unresolved external symbol error in Visual Studio C++

Question

这是我在 Visual Studio C++ 中的代码

#include "stdafx.h"
#include<opencv\cv.h>
#include<opencv\highgui.h>

using namespace cv;

int main(int argc, char** argv[]) {
  IplImage* img = cvLoadImage("logo.jpg");
  cvNamedWindow("Test", CV_WINDOW_AUTOSIZE);
  cvShowImage("Test", img);
  cvWaitKey(0);
  cvReleaseImage(&img);
  cvDestroyWindow("Test");
  return 0;
}

我正在使用 OpenCV 2.4.6 和 Visual Studio 2010。这是错误:

openCV_testing.obj : error LNK2019: unresolved external symbol _cvDestroyWindow
referenced in function _main
openCV_testing.obj : error LNK2019: unresolved external symbol _cvReleaseImage     
referenced in function _main
openCV_testing.obj : error LNK2019: unresolved external symbol _cvWaitKey referenced in  
function _main
openCV_testing.obj : error LNK2019: unresolved external symbol _cvShowImage referenced   
in function _main
openCV_testing.obj : error LNK2019: unresolved external symbol _cvNamedWindow    
referenced in function _main
openCV_testing.obj : error LNK2019: unresolved external symbol _cvLoadImage referenced 
in function _main

请帮忙。

Answer 1

'unresolved external symbol' 表示您没有链接到所需的库。转到 Properties -> Linker -> Additional Library dependencies 并添加 OpenCV 库的路径。