Opencv, DSO missing from command line collect2: error: ld returned 1 exit status

Question

我将 OpenCV 安装到 Ubuntu 14.04。我正在尝试在 opencv 网站上学习教程。运行执行此代码时出现错误。我正在使用日食运行代码。我在构建项目时遇到此错误。我向 g++ 链接器添加了 opencv_core、opencv_highgui、opencv_imgcodecs 库。

Error message: 

//usr/local/lib/libopencv_imgproc.so.3.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make: *** [optest01] Error 1

代码：

#include "opencv2/imgproc.hpp"
#include "opencv2/highgui.hpp"
#include <stdlib.h>
#include <stdio.h>

using namespace cv;

/// Global variables

Mat src, src_gray;
Mat dst, detected_edges;

/** @function main */
int main( int argc, char** argv )
{
  /// Load an image
  src = imread( "/images/Lenna.jpg" );

  if( !src.data )
  { return -1; }

  /// Create a matrix of the same type and size as src (for dst)
  dst.create( src.size(), src.type() );

  /// Convert the image to grayscale
  cvtColor( src, src_gray, COLOR_BGR2GRAY );

  return 0;
  }

Answer 1

您的错误代码：

//usr/local/lib/libopencv_imgproc.so.3.0: error adding symbols: DSO missing from command line

告诉你你还没有 linked opencv_imgproc。只需 link 所需的库：

-lopencv_imgproc

Answer 2

我有类似的问题 DSO missing from command line 并且在前面添加 -L/usr/local/lib 解决了我的问题，即 g++ source_code.cpp -o output_name -L/usr/local/lib <dependent libraries e.g. -lopencv_highgui>

Opencv, DSO missing from command line collect2: error: ld returned 1 exit status

Opencv, DSO missing from command line collect2: error: ld returned 1 exit status

c++

opencv

opencv3.0