ios - Can't set custom class for cell in table view controller -

i'm going crazy: i can't set custom class uitableviewcell , don't know why.

my project

in storyboard have table view controller set use manageliststvc.swift.

i want use custom cell dynamic prototypes create custom class listtvcell:

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

so, clean, build, go in ib, select table view controller, select cell and...

i can't see custom class! why? really, waste time stupid problem , don't know what's wrong.

what tried

• empty cache in ~/library/developer/xcode/deriveddata
• restart xcode
• clean project
• check if listtvcell.swift appears in compiled sources

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i'm using xcode 6.3.1.

--> incredibly after complete reboot of mac works , can set custom class.

really strange decide reply post, maybe can helpful else.