I have two errors remaining and they are the same errors. Don't know what could be wrong. I even copy and pasted from the source Alamofire doc and made sure pods were up to date but same error. 

```
public func URLSession(session: NSURLSession, didReceiveChallenge challenge: NSURLAuthenticationChallenge, completionHandler: ((NSURLSessionAuthChallengeDisposition, NSURLCredential?) -> Void)) {
        if sessionDidReceiveChallenge != nil {
            completionHandler(sessionDidReceiveChallenge!(session, challenge)) // Missing argument for parameter #2 in call
        } else {
            completionHandler(.PerformDefaultHandling, nil)
        }
    }

```

[![enter image description here](https://i.stack.imgur.com/7tqH1.png)](https://i.stack.imgur.com/7tqH1.png)