TraX support not detected when VOT text

I have runned the demo_CFWCR.m successfully
and i have copied the trax files into the native of VOT file
and then i create the workpace.
But i meet the error when i run run_experiments.m

Tracker execution interrupted: Unable to start the tracker process
TraX support not detected.

Thanks for your reply if you know how to deal with this error.