# Revision history [back]

please update to latest master or 4.1. 4.0.0 indeed does not have it.

also note, that it should be:

SimpleBlobDetector detector = SimpleBlobDetector.create();


(there is no public constructor , you can't use new)

please update to latest master or 4.1. 4.0.0 indeed does not have it.it.

also note, that it should be:

SimpleBlobDetector detector = SimpleBlobDetector.create();


(there is no public constructor , you can't use new)