V ray and rhino 6 c# example

Thanks. When I am again trying this command in command run I get Please mention location of the scene to save and it shows D:\test.vrscene automatically but does not save.
Also when I run it inside class it does not do anything.

did it work back in April, and not working now, or it didn’t work back then, and not working now ?

Thanks Nicolay. yes it did work in april. Now when I run it it says Please mention location of the scene to save. Do you have any working sample that I can try in rhino 6? Thanks in advance.