OpenCV LBP traincascade stuck with a False Alarm of 0

I have asked the same question on [stackoverflow](http://stackoverflow.com/questions/22477687/opencv-lbp-traincascade-stuck-with-a-false-alarm-0). I have been using OpenCV's traincascades to detect faces. Many time when the number of positive and negative sample are low, the training gets stuck after a stage where Hit Rate=1 and False Alarm=0 has been reached. So the command window output looks like this- ===== TRAINING 13-stage ===== Training until now has taken 0 days 0 hours 17 minutes 26 seconds. ===== TRAINING 14-stage =====