ios - Parse set applicationId quitting -

i have app opens right away login/register page. everytime run it, error. exception breakpoint shows error in viewdidloadstatement. here is:

override func viewdidload() { super.viewdidload()               parse.setapplicationid("evh469wqjtgjbwvatysdepvjaetquqdimcyaqujc", clientkey: "4h9smitcwq1aaasvfsj3eluuowci3oteywmjrlxv")             var currentuser = pfuser.currentuser()             if currentuser != nil             {                self.performseguewithidentifier("homepage", sender: anyobject?())             }             else             {              }  } 

the breakpoint highlights parse.setapplicationid line. cannot figure out life of me. appreciated!

update: crashes on phone, not in simulator... weirder