ios - NSInternalInconsistencyException : must register a nib or a class for the identifier or connect a prototype cell in a storyboard -

i know question being asked many times i've gone through questions not able figure out whats wrong in case

my error message :

    terminating app due uncaught exception 'nsinternalinconsistencyexception', reason: 'unable dequeue cell identifier postcell - must register nib or class identifier or connect prototype cell in storyboard' *** first throw call stack: (0x1823f6db0 0x181a5bf80 0x1823f6c80 0x182d7c154 0x1876ddbf0 0x193b51ccc 0x10009b474 0x10009b50c 0x1878ab030 0x1878ab198 0x18789a298 0x1878afc64 0x1876408c4 0x1875501e4 0x184ee2994 0x184edd5d0 0x184edd490 0x184edcac0 0x184edc820 0x187552ff4 0x1823ad09c 0x1823acb30 0x1823aa830 0x1822d4c50 0x183bbc088 0x1875be088 0x10009aefc 0x181e728b8) libc++abi.dylib: terminating uncaught exception of type nsexception (lldb)  

here's tableview 5 static cells can see cell's identifier set postcell , assigned class tableviewcell

tableviewcell class :

    class tableviewcell: uitableviewcell {      override func awakefromnib() {         super.awakefromnib()         // initialization code     }      override func setselected(selected: bool, animated: bool) {         super.setselected(selected, animated: animated)          // configure view selected state     }  } 

tableviewcontroller class :

class posttableviewcontroller: uitableviewcontroller {  override func viewdidload() {     super.viewdidload()  }  override func didreceivememorywarning() {     super.didreceivememorywarning()     // dispose of resources can recreated. }  // mark: - table view data source  override func numberofsectionsintableview(tableview: uitableview) -> int {     // #warning incomplete implementation, return number of sections     return 1 }  override func tableview(tableview: uitableview, numberofrowsinsection section: int) -> int {     // #warning incomplete implementation, return number of rows     return 5 }   override func tableview(tableview: uitableview, cellforrowatindexpath indexpath: nsindexpath) -> uitableviewcell {     let cell = tableview.dequeuereusablecellwithidentifier("postcell", forindexpath: indexpath) as! tableviewcell      return cell } } 

this frustrating trying figure last night , if knows whats wrong or missing please let me know

if want able dequeue cell instances , modify them must use prototype cells, not static cells. each cell must have unique reuse identifier.