nil is not compatible with expected argument type '() -> Void'

Question

SKAction.group([moveToAction, SKAction.fadeAlphaTo(1.0, duration: 0.2)]), completion:nil)

}

runAction(SKAction.waitForDuration(0.2), completion: completion)

When I do this, I get the error:

nil is not compatible with expected argument type '() -> Void'

Answer 1

() -> Void is not Optional so it can not be nil.

You should pass empty closure as completion parameter:

..., completion: {})