error when tracking other objects by using sort

[DeanHao]

HI,bendidi! I met some problem when trying to track cars.
9.893 FPSTraceback (most recent call last):
File "run.py", line 26, in
tfnet.camera()
File "F:\Tracking-with-darkflow\darkflow\darkflow\net\help.py", line 171, in camera
encoder=encoder,tracker=tracker)
File "F:\Tracking-with-darkflow\darkflow\darkflow\net\yolov2\predict.py", line 124, in postprocess
trackers = tracker.update(detections)
File "F:\Tracking-with-darkflow\sort\sort.py", line 213, in update
trk.update(dets[d,:][0])
IndexError: too many indices for array
I use python3.5,am i use the wrong version of python?
thank you!

[obendidi]

should be fixed with latest commit (it's a very bad and simple first fix, but should keep the tracking going until I can think (or anyone else ) of a better method !

[DeanHao]

I found out what the problem is. It comes out when the first frame doesn't show the tracked object.