title: Xcode 6.3 update cause working app to fail - what was working now doesn't
body: <p>I don't know if anyone else has experienced this, but I have an app I'm building and it was working just fine. Then I stupidly allowed mac to install and <code>xcode</code> update.  Next thing I know, I open the project and the build fails with 21 errors.  I have fixed 20 of them. Incidentally, anyone else finding this issue with <code>PF_Nullability</code> errors, <a href="https://groups.google.com/forum/#!topic/parse-developers/im-bNTazInU">check this out</a>.</p>
  
  <p>That worked for 20 errors, but the last one is in a function that was working correctly.  In this function, I query a data class on parse.com and get a random object to populate variables in my view <code>controller/app/whatevers</code>.  I am putting the function below so you can see the whole thing, but this is the erroneous line:</p>
  
  <pre><code> countQuery.countObjectsInBackgroundWithBlock { (count: Int32, error: NSError!) -&gt; Void in
  There error: cannot invoke 'countobjectsinbackgroundwithblock' with an argument list of type '((Int32, NSError!) - Void in)'
  </code></pre>
  
  <p>Here is the whole function and here's to hoping it's just a syntax thing like the other 20 fixes:</p>
  
  <pre><code>     func CallData() {
      var countQuery = PFQuery(className: "QandA")
      countQuery.countObjectsInBackgroundWithBlock { (count: Int32, error: NSError!) -&gt; Void in
          if (error == nil) {
              let randomNumber = Int(arc4random_uniform(UInt32(count)))
              var query = PFQuery(className: "QandA")
              query.skip = randomNumber
              query.limit = 1
              query.findObjectsInBackgroundWithBlock { (objects: [AnyObject]!, error: NSError!) -&gt; Void in
                  if (error == nil) {
                      var object: AnyObject = objects[0]
                      self.Question = object  ["Question"] as String!
                      self.Answers = object  ["Answers"] as Array!
                      self.Answer = object  ["Answer"] as String!
  
                      if (self.Answers.count &gt; 0) {
                          self.QuestionLabel.text = self.Question
                          self.Button1.setTitle(self.Answers[0], forState: UIControlState.Normal)
                          self.Button2.setTitle(self.Answers[1], forState: UIControlState.Normal)
                          self.Button3.setTitle(self.Answers[2], forState: UIControlState.Normal)
                          self.Button4.setTitle(self.Answers[3], forState: UIControlState.Normal)
                      }
                  } else {
                      NSLog("Something is wrong with the find request, dude.  Sorry. %@", error)
                  }
              }
          } else {
              NSLog("Something is wrong with the count request, dude.  Sorry. %@", error)
          }   
      }
  }
  </code></pre>
  
  <p>Any ideas on how to get rid of that error?  Why it's not working now when it did work before?  Thank you.</p>