Hi i’m sure of this code but i found probleme in visual studio 2015 i visit websites to resolve my problem thanks État de la suppression Erreur C1083 Impossible d’ouvrir le fichier include : ‘opencv2/core/core.hpp’ : No such file or directory FaceRecognitionDemo C:\Users\lenovo\Documents\Unreal Projects\FaceRecognitionDemo\Source\FaceRecognition.h 15