Also, GPU cards start from 0. Try first with one card. G0 is the first card on index X.
Just try a few combinations and start simple (1 card).
You'll figure it out. I had the same issue but now mining with opencl 1 and all cards -G 0,1,..,n
Good luck.
Thanks, I am finally able to run this program.
What I saw during the run, is that sometimes some of the gpus shows 0h/s but shortly after that showing just normal ammount of h/s. Is it normal?
And last question, what is your temperatures of cards guys?
My Tempus See around 55°C