ios - Cannot invoke initializer for type 'MCNearbyServiceAdvertiser' -

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working on ios multipeer connectivity, after updating swift 2.0, facing issue following codes:

var advertiser:mcnearbyserviceadvertiser! var peer:mcpeerid!  func startendadvertising(value:bool) {      if advertiser == nil      {          var someobject: [string : anyobject] = ["profilename" : datacentral.getinstance.userpeervo.peername]          advertiser = mcnearbyserviceadvertiser(peer: peer, discoveryinfo: someobject, servicetype: "shadow-chat")          advertiser.delegate = self      }  }

this following line generates error "cannot invoke initialiser type 'mcnearbyserviceadvertiser' argument list of type '(peer: mcpeerid!, discoveryinfo: [string : anyobject], servicetype: string)'"

advertiser = mcnearbyserviceadvertiser(peer: peer, discoveryinfo: someobject, servicetype: "shadow-chat")


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