ios - Swift Optional Type not Unwrapped -

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i've been having problem due new updated version of swift. problem line of code keeps producing error saying that:

"value of optional type '()?' not unwrapped; did mean use '!' or '?'?

cell?.hypeimageview?.image = uiimage(data: imagedata)

this entire function:

    override func tableview(tableview: uitableview, cellforrowatindexpath indexpath: nsindexpath, object: pfobject?) -> pftableviewcell? {      var cell:hypetableviewcell? = tableview.dequeuereusablecellwithidentifier(cellidentifier) as? hypetableviewcell     if(cell == nil) {         cell = nsbundle.mainbundle().loadnibnamed("hypetableviewcell", owner: self, options: nil)[0] as? hypetableviewcell     }      if let pfobject = object {         cell?.hypenamelabel?.text = pfobject["name"] as? string          var votes:int? = pfobject["votes"] as? int         if votes == nil {             votes = 0         }         cell?.hypevoteslabel?.text = "\(votes!) votes"          let credit:string? = pfobject["cc_by"] as? string //if prob change var         if credit != nil {             cell?.hypecreditlabel?.text = "\(credit!) / cc 2.0"         }          cell?.hypeimageview?.image = nil         if var urlstring:string? = pfobject["url"] as? string {             var url:nsurl? = nsurl(string: urlstring!)             if var url:nsurl? = nsurl(string: urlstring!) {                 var error:nserror?                 var request:nsurlrequest = nsurlrequest(url: url!, cachepolicy: nsurlrequestcachepolicy.returncachedataelseload, timeoutinterval: 5.0)                  nsoperationqueue.mainqueue().cancelalloperations()                  nsurlconnection.sendasynchronousrequest(request, queue: nsoperationqueue.mainqueue(), completionhandler: {                     (response:nsurlresponse!, imagedata:nsdata!, error:nserror!) -> void in                      cell?.hypeimageview?.image = uiimage(data: imagedata)                  })             }         }      }      return cell  }

how can fix issue?

assuming you're using swift 2.0 change signature completionhandler expect optionals rather implicitly unwrapped optionals, problem go away.

nsurlconnection.sendasynchronousrequest(request, queue: nsoperationqueue.mainqueue()) { (response:nsurlresponse?, data:nsdata?, error:nserror?) -> void in      guard let imagedata = data else {         assertionfailure("no data found")         return     }      cell?.hypeimageview?.image = uiimage(data: imagedata) }

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