Fallen at the first hurdle - I can't get my ssh key accepted

What form is the beta expecting the SSH key -ah, OK, I see the issue has been reported by someone else:- " [Le caractère @ n’est pas accepter pour le nom des clés SSH]

I think this probably needs some sort of indication of what is acceptable

Hello Chris,
Yes either we will find a solution to fix this easily either we will have to indicate that you can not use characters like ‘@’