error: ‘LINE_AA‘ is not a member of ‘cv‘

问题：

error: 'CAP_FFMPEG' is not a member of 'cv'
error: 'LINE_AA' is not a member of 'cv'
error: 'fourcc' is not a member of 'cv::VideoWriter'
error: 'CAP_PROP_FRAME_COUNT' is not a member of 'cv'

网上解决办法：

加上头文件

#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/opencv.hpp"

没有用。。。

最后：

更新opencv版本，自带为2.4.9，更新为3.4.3，没有上面的问题了。

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