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I am running Xcode 10.3 on a MBP from 2015. Does this limit the version of Swift I can write with? How can I tell which version of Swift I am using? I am getting an error: Value of type URL has no member 'withQueries' and I think it is because the code is incompatible with the version of Swift I am using? let baseURL = URL(string: "https://api.nasa.gov/planetary/apod")! let query: [String: String] = [ "api_key": "DEMO_KEY", "date": "2011-07-13"] let url = baseURL.withQueries(query)! let task = URLSession.shared.dataTask(with: url) { (data, response, error) in     if let data = data, let string = String(data: data, encoding: .utf8) { print(string) } PlaygroundPage.current.finishExecution() } task.resume()

I am working my way through a Swift course from 2015. It is asking me to "Write a function called magicEightBall that generates a random number and then uses either a switch statement or if-else-if statements to print different responses based on the random number generated. let randomNum = Int.random(in: 0...4) will generate a random number from 0 to 4, after which you can print different phrases corresponding to the number generated. Call the function multiple times and observe the different printouts." Here is what I have written so far, but it isn't working: func magicEightBall(randomNum: Int) {     let randomNum = Int.random(in: 0...4)          print(randomNum) } magicEightBall() I keep getting an error that says "Missing argument for parameter 'randomNum' in call any help would be greatly appreciated, Thank You