SKView warning logs

This is Apple's response to this issue:

Hi! You don't really need to fix that. That's a log message that was left by mistake in SpriteKit framework. It was removed and will no longer appear in the future SpriteKit versions. Thanks!

just figured this out for myself.

In your code change

if let scene = SKScene(fileNamed: "GameScene")

to

if let scene = GameScene(fileNamed: "GameScene")