title: Cannot invoke 'CGRect.Type.init' with an argument list of type '(x: Int, y: Int, width: Float, height: Float)'
body: <p>I'm learning swift，but a mistake was encountered when initializing collectionview,the error message is 'Cannot invoke 'CGRect.Type.init' with an argument list of type '(x: Int, y: Int, width: Float, height: Float)''.And,here is my screenshot：
  <a href="https://i.stack.imgur.com/jbUAN.png" rel="nofollow noreferrer"></a></p>
  
  <p>Thank you for any help！</p>