1.在cmakelists中添加如下配置:
set(OpenCV_DIR E://opencv//opencv//build//x64//vc15//lib)
find_package(OpenCV REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})
target_link_libraries(MyFaceDetection ${OpenCV_LIBS})
路径使用自己的安装路径。
2.如果不行的话在系统的环境变量中添加E:\opencv\opencv\build\x64\vc15\bin