issues in post install step while installing tracker software [https://opensourcephysics.github.io/tracker-website/]

sparkboy wrote:

Problem running post-install step. Installation may not complete correctly

Error running /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -domain local -domain system -domain user: # The -kill option has been removed because it was dangerous and no longer useful.

Seems like the error message is pretty self-explanatory.

You should report this to the people who make that "tracker" software.