In Hour 3, I use this code to demonstrate how to replace my last name (Ray) with “is awesome!”: var myFullName: String = “John Ray” var myDescription: String = myFullName.stringByReplacingOccurrencesOfString(myFullName, withString: “is awesome!”) This is incorrect. As written, this would…

The horizontal and vertical guides are now accessed by choosing Editor, Canvas, Add Guide.

In the last paragraph on page 86 (Hour 3), I reference “myInstanceMethod” being defined on line 14. This is incorrect – it is actually defined on line 17.

Having trouble with the Hour 1 Welcome project? Please download the updated tutorial archive – posted May 6th, 2015. A change in the Swift project templates with the latest version of Xcode prevented the application from running.

Teach Yourself iOS 8 in 24 Hours was written with the latest version of Xcode, and the project files were prepared with the latest beta. Unfortunately, Swift is evolving quickly. There will likely be small issues that occur in the…