APS Excellence in Physics Education Award
November 2019

Education Prize Logo
Science SPORE Prize
November 2011

NSF Logo
The Open Source Physics Project is supported by NSF DUE-0442581.

Tracker version 6.0.3 released post and replies

Return to the Tracker version 6.0.3 released thread
Login to post to this thread

Tracker could not be started due to OutOfMemoryError: Java heap space
Laura Quintero
1 Posts

Hi everyone,

I have downloaded the latest version of Tracker and when running it I get the error message: "out of memory error java heap space", I can't open tracker by tracker.jar

I have tried to open the file "tracker.prefs" in the text editor but when saving and exiting, a text box appears saying that the owner of the program does not allow editing the space due to encoding.

I have also tried to download the old version and it does not allow to open videos because I get a message saying that the video engine does not exist.

What should I do in this case?

Thank you, I hope for a prompt reply.

Tracker 6.0.3 now ready--a recommended update
Douglas Brown Avatar
Douglas Brown
339 Posts

Another new version, 6.0.3, is now available and recommended. It fixes some serious bugs in particle models and model builders (which I hope many of you use ;-)

Please continue to post questions and/or bug reports on this forum. Suggestions for new features too!


PS the latest version 5.2.3, identical to 6.0.3 except that it uses the older Xuggle 3.4 engine, will soon be ready for users of older (pre-2018 or so) Mac OSX.

Replies to Tracker 6.0.3 now ready--a recommended update

Re: Tracker 6.0.3 now ready--a recommended update -
Giancarlo Cavagna
6 Posts

i installed version 6.0.3 but when i start the program a window pops up saying it can't find the xuggle engine. I attach tracker_install.log

Version 5.1.5 installed works fine.

Can you help me?


Attached File: install-log.pdf

OSP Projects:
Open Source Physics - EJS Modeling
Physlet Physics
Physlet Quantum Physics
STP Book