title: No index path for table cell being reused in Swift
body: <p>I noticed there are many questions on this in Obj-C but I hardly remember Obj-C and each of the answers was specific to the question. Here I get this error: "No index path for table cell being reused" sometimes when the app refreshes. I notice that when I don't refresh but I leave and reopen the table view the formatting is ruined.</p>
  
  <p>Here is my "refresh" method used in a few places:</p>
  
  <pre><code>   @IBAction func loadData(){
          timeLineData.removeAllObjects()
          //pulls the data from the server
          var findTimeLineData: PFQuery = PFQuery(className: "Sweets")
          findTimeLineData.findObjectsInBackgroundWithBlock{
              (objects:[AnyObject]!, error: NSError!) -&gt; Void in
              if !error{
                  for object:PFObject! in objects{
                      self.timeLineData.addObject(object)
                  }
                  let tempArray: NSArray = self.timeLineData.reverseObjectEnumerator().allObjects
                  self.timeLineData = tempArray as NSMutableArray
  
                  //reloads the data in the table view
                  self.tableView.reloadData()
              }
          }
      }
  </code></pre>
  
  <p>And the tableview method:</p>
  
  <pre><code>override func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -&gt; UITableViewCell? {
      let cell: SweetTableViewCell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as SweetTableViewCell
  
      let sweet: PFObject = self.timeLineData.objectAtIndex(indexPath.row) as PFObject
  
      //part of the animation
      cell.sweetTextView.alpha = 0
      cell.userNameLabel.alpha = 0
      cell.timestampLabel.alpha = 0
  
  
      cell.sweetTextView.text = sweet.objectForKey("content") as String
  
      //add the date
      var dateFormatter: NSDateFormatter = NSDateFormatter()
      dateFormatter.dateFormat = "HH:mm yyyy-MM-dd"
      cell.timestampLabel.text = dateFormatter.stringFromDate(sweet.createdAt)
  
      //finds the sweeter associated with a pointer
      var findSweeter: PFQuery = PFUser.query()
      findSweeter.whereKey("objectId", equalTo: sweet.objectForKey("sweeter").objectId)
  
      findSweeter.findObjectsInBackgroundWithBlock{
          (objects: [AnyObject]!, error: NSError!)-&gt; Void in
          if !error{
              let user: PFUser = (objects as NSArray).lastObject as PFUser
              cell.userNameLabel.text = user.username
          }
  
      }
  
      //adds animation
      UIView.animateWithDuration(1, animations: {
          cell.sweetTextView.alpha = 1
          cell.userNameLabel.alpha = 1
          cell.timestampLabel.alpha = 1
      })
  
      return cell
  }
  </code></pre>
  
  <p>Any idea what is causing the error?</p>