ios - I've got an error in swift 3 -


i new swift 3 , i've got error couldnt find answer for... want make table view in custom design , part taht wanted register xib file.

//  viewcontroller.swift //  flash chat  import uikit import firebase  class chatviewcontroller: uiviewcontroller , uitableviewdelegate , uitableviewdatasource {      @iboutlet var heightconstraint: nslayoutconstraint!     @iboutlet var sendbutton: uibutton!     @iboutlet var messagetextfield: uitextfield!     @iboutlet var messagetableview: uitableview!      override func viewdidload() {         super.viewdidload()          messagetableview.delegate = self         messagetableview.datasource = self          messagetableview.register(uinib(nibname : "messagecell" , bundle : nil), forcellreuseidentifier: "custommessagecell")     }      func tableview(_ tableview: uitableview, cellforrowat indexpath: indexpath) -> uitableviewcell {         let cell = tableview.dequeuereusablecell(withidentifier: "custommessagecell", for: indexpath) as! custommessagecell         let messagearray = ["first message", "second message", "third message"]         cell.messagebody.text = messagearray[indexpath.row]         return cell     }      func tableview(_ tableview: uitableview, numberofrowsinsection section: int) -> int {           return 3       }      @ibaction func sendpressed(_ sender: anyobject) {     }      @ibaction func logoutpressed(_ sender: anyobject) {             {             try firauth.auth()?.signout()             } catch {                print(error)              }          guard (navigationcontroller?.poptorootviewcontroller(animated: true)) != nil             else {                 print("ther no view controller")                 return         }     } }

error image

is typo mistake , initializer called in init(nibname:bundle:) not init(nibname:bundle:)

is 

      messagetableview.register(uinib(nibname : "messagecell" , bundle : nil), forcellreuseidentifier: "custommessagecell")

or use 

 messagetableview.register(uinib.init(nibname: "messagecell", bundle: nil), forcellreuseidentifier: "custommessagecell")

not 

       messagetableview.register(uinib(nibname : "messagecell" , bundle : nil), forcellreuseidentifier: "custommessagecell")

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