error after the installation of draw (test harness application)

Greetings, I'm recently starting on working in a CAD project so I need to test some things on the draw (test harness application) to understand how those things works specially OCAF, but after I install it, in the terminal (I use linux by the way) it shows me this error: can't read "::env(CASROOT)": no such variable ... I'd tried to put some commands but nothing happend. Could anyone explain me why please? Thanks by hand...


Kirill Gavrilov's picture

but after I install it, in the terminal

So how you have exactly "installed" Open CASCADE Technology, and how you are launching Draw Harness?
If you have built OCCT from source code, there usually should be shell script which would set up environment variables required for using Draw Harness.