I got an error in this line = FDetect = vision.Cas​cadeObject​Detector;

clear all clc %Detect objects using Viola-Jones Algorithm

%To detect Face FDetect = vision.CascadeObjectDetector;

%Read the input image I = imread('HarryPotter.jpg');

%Returns Bounding Box values based on number of objects BB = step(FDetect,I);

figure, imshow(I); hold on for i = 1:size(BB,1) rectangle('Position',BB(i,:),'LineWidth',5,'LineStyle','-','EdgeColor','r'); end title('Face Detection'); hold off;