It says on the bottom, add "--platform 1" to your command line (.conf file/.bat file) if platform 1 doesn't work, try 0 or 2, my AMD were on platform 2
I hope this works for you, I had the same problem but I was playing with -d 1 config, so was completely off track.
Thank you for your reply but as you can see in my post, I tried all the available platforms, just to ensure the OP wouldn't tell me to try another one.