can set up gmail on all devices but imac
I have ipad, iphone and a laptop. Gmail is set up and working on all but not showing up on my iMac. I tried to set manually and it's not working It freezes once I get to adding what apps for it to work with (see photo) . My iMac (Sierra 10.12.6) is fully updated refuses to let me add it. This is driving me nuts. I tried check in all the boxes I also tried just checking mail. Nothing works -Thank you for any help!!!
iMac 27", 10.12