Hello, I'm new to this site and new to Objective-C/Swift both. I recently started using Swift yesterday via Xcode 6 beta. I know it's beta and I'm attempting to learn how to code in swift but xcode 6 keep crashing. I barely started and I only want to practice to "get it" as I code along. For example, I'd type in: Code: var first: Integer = 5 println(first) var second: Double = 4.4 println(second) let sum1 = Double(first) + second println(sum1) And boom, it crashes. And I see people are having no problem developing something (Googled and saw someone posting "recreated flappy bird with swift") so I assume it's just me. How do I find the cause of this particular problem and fix it? Also, my macbook pro is on OSX 10.9.3 and laptop itself is bit old, made in 2008. Is it the laptop or is it something else? Thanks!