c++ - "ld: symbol(s) not found for architecture x86_64" for OpenCV 3 -

i have installed opencv 3 using cmake on mac yosemite. using eclipse ide , while building solution showing error:

g++ -l/usr/local/lib -o "test1"  ./main.o   -lopencv_imgcodecs -lopencv_highgui -lopencv_core undefined symbols architecture x86_64:   "cv::videocapture::read(cv::_outputarray const&)", referenced from:       _main in main.o   "cv::videocapture::videocapture(int)", referenced from:       _main in main.o   "cv::videocapture::~videocapture()", referenced from:       _main in main.o   "cv::videocapture::get(int) const", referenced from:       _main in main.o   "cv::videocapture::isopened() const", referenced from:       _main in main.o ld: symbol(s) not found architecture x86_64 clang: error: linker command failed exit code 1 (use -v see invocation) make: *** [test1] error 1 

i have added header files , libraries in settings. please me rid of error. in advance

code:

#include "opencv2/highgui/highgui.hpp" #include <iostream>  using namespace cv; using namespace std;  int main(int argc, char* argv[]) {     videocapture cap(0); // open video camera no. 0      if (!cap.isopened())  // if not success, exit program     {         cout << "cannot open video cam" << endl;         return -1;     }     double dwidth = cap.get(cv_cap_prop_frame_width); //get width of frames of video    double dheight = cap.get(cv_cap_prop_frame_height); //get height of frames of video      cout << "frame size : " << dwidth << " x " << dheight << endl;      namedwindow("myvideo",cv_window_autosize); //create window called "myvideo"      while (1)     {         mat frame;          bool bsuccess = cap.read(frame); // read new frame video           if (!bsuccess) //if not success, break loop         {              cout << "cannot read frame video stream" << endl;              break;         }          imshow("myvideo", frame); //show frame in "myvideo" window          if (waitkey(30) == 27) //wait 'esc' key press 30ms. if 'esc' key pressed, break loop        {             cout << "esc key pressed user" << endl;             break;        }     }     return 0;  }