I'm in the middle of rooting, I flashed the TWRP recovery. The tutorial says to drag the superuser file onto my galaxy nexus storage, so I dragged and dropped the file onto the galaxy nexus drive on my mac. I went into fastboot mode, than went into recovery mode. I went into TWRP and clicked install like the tutorial said, but the superuser file never appears for me to click on! how come I can see it on my computer when I look at my gnex drive thing but it doesn't appear on TWRP thing? I've been trying to root my phone for half a day and its just giving me so many problems. I though this was going to be easy.