How to extract successive frames from a video sequence to track a face using camshift algorithm?

I have attached camshift.m file.(I looked into the sample code from:- https://in.mathworks.com/help/vision/examples/face-detection-and-tracking-using-camshift.html )

After running the following code only one frame is detected. This code is not able to track the face from the entire video.

These are the errors I am getting,

1. Error using SystemProp.parseInputs (line 742) vision.CascadeObjectDetector System object constructor supports only 1 value-only inputs. You have specified 3 value-only inputs. A common cause of this error is misspelling a property name.

2. Error in D:\R2013a\toolbox\matlab\system\+matlab\+system\SystemProp.p>SystemProp.setProperties (line 203)

3. Error in vision.CascadeObjectDetector (line 179) setProperties(obj,nargin,varargin{:},'ClassificationModel');

4. Error in camshift (line 10) noseDetector = vision.CascadeObjectDetector('Nose', 'UseROI', true);