I installed Opencv3.4 but it does not recognize the call to the instruction: import org.opencv.highgui.VideoCapture. Mark error in VideoCapture

edit

since 3.0, the functions for image reading and video were moved to seperate other modules:

imread() and friends are in imgcodecs

the videocapture is in videoio , not in highgui

(your code / docs might be outdated)