Getparm_aps not working

Dear All

I have pre-processed Sentinel-1 stack using ISCE2 and then ready to process it in StaMPS and Train (for linear tropospheric correction). The installation of StaMPS was done and sourced the StaMPS_CONFIG.bash and

Opening matlab, and able to perform all stamps steps (1-8) succesfully. But while running getparm_aps then it is not working. Error Message is

getparm_aps does not found.

Therefore, I am also not able to run aps_linear.

Though the paths editing in and its sourcing path are completely OK.

Please help me, what is the problem in running getparm_aps.

With regards
Hari Shankar