It's a raspberry pi 3 model B running Retropie 4.3 rpi2 rpi3. There is no error message and I am very new to Linux. I will post pics. The controller is recognized but when I try and register this happens..0_1520418277954_IMG_20180307_015618306.jpg 0_1520418330698_IMG_20180307_015804652_BURST000_COVER_TOP.jpg
I hope that helps.