When I did "roslaunch opt_calibration opt_define_reference_frame.launch".
The terminal gave me an error:
[opt_define_reference_frame.launch] is neither a launch file in package [opt_calibration] nor is [opt_calibration] a launch file name
Then I went to ".../open_ptrack/opt_calibration/launch/".
There was no "opt_define_reference_frame.launch".
it looks to me like calibration was not built / installed properly. Try again on clean instance, take care to note any errors / fails during the process.
When I did "roslaunch opt_calibration opt_define_reference_frame.launch". The terminal gave me an error: [opt_define_reference_frame.launch] is neither a launch file in package [opt_calibration] nor is [opt_calibration] a launch file name Then I went to ".../open_ptrack/opt_calibration/launch/". There was no "opt_define_reference_frame.launch".