"Type String does not conform to protocol StringLiteralConvertible"

I'm a longtime Obj-C developer but am new to Swift, like everyone else, and scratching my head at this one. I'm trying to convert an older tutorial that was written in Obj-C. I have an "Animal" class declared like so: ``` class Animal { let title: String let image: UIImage let creator: String init(title: String, image: UIImage, creator: String) { self.title = title self.image = image self.creator = creator } } ``` And in another class, I want an array of Animal instances, which is declared as a property of that class like so: ``` let animals: [Animal] ``` And initialized (unsuccessfully) like so: ``` animals = [Animal(title: "Sleeping Cat", image: UIImage.imageNamed("ID-101.jpg") creator:"papaija2008"), ... ... ] ``` I am getting a build error in the first line of this array initializer, which reads just like the title of the post: "Type String does not conform to protocol StringLiteralConvertible". Can we not assign string literals to String objects? That seems impossible. What rule am I violating and how do I fix this? Thanks in advance!