Cmake-Build-Debug --target test_opencv -- -j 6 -- OpenCV ARCH: x64 -- OpenCV

Question

Cmake-Build-Debug --target test_opencv -- -j 6 -- OpenCV ARCH: x64 -- OpenCV

RUNTIME: mingw
-- OpenCV STATIC: OFF
-- Found OpenCV 4.5.0 in ...
-- You might need to add C:/Users/vladi/Desktop/test_opencv/opencv2/x64/mingw/bin to your PATH to be able to run your applications.
-- Configuring done
OPENCVLIBS:opencv_calib3d...
-- Generating done
[ 50%] Linking CXX executable test_opencv.exe
CMakeFiles\test_opencv.dir/objects.a(main.cpp.obj): In function `main':
C:/Users/vladi/Desktop/test_opencv/main.cpp:11: undefined reference to `cv::VideoCapture::VideoCapture()'
C:/Users/vladi/Desktop/test_opencv/main.cpp:12: undefined reference to `cv::VideoCapture::open(int, int)'...
где искать ошибку? для меня это просто абсурдно выглядит - пишет о найденной библиотеке и потом не находит функции этой библиотеки