ios - watchconnectivity not working on device - only simulator -

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i have followed many tutorials online , seen how connect watch iphone able send data , have following code to:

send:

watchsession.sendmessage(["name":"maz"], replyhandler: nil) { (error) -> void in      }

receive:

func session(session: wcsession, didreceivemessage message: [string : anyobject]) {     mylabel.settext(message["name"]! as? string)     //reloadwatchtable() }

the code works when use simulator not when i'm running on iphone , apple watch.


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