Errors in Swift - Expected Declaration and Value of type “x” has no member “y” (Image attached)

Very new to swift and coding in general and am trying to do a basic login/register page for my application. I'm following along with an online tutorial and (as far as i'm aware) done everything exactly the same. However, I am receiving two errors when attempting to build and I can't for the life of me figure it out! Any help would be great, thanks. Very new to swift and coding in general and am