 
 
   removeParticipantFromPermissions: (nickname)->
-    return throwError "permissions is not set"   unless @permissions
+    return warn 'permissions is not set'  unless @permissions
     # Removes the entry for the given key (if such an entry exists).
     @permissions.delete(nickname)
 



  cleanupCollaboration: (options = {}) ->
    return throwError 'RealTimeManager is not set'  unless @rtm

    kd.utils.killRepeat @pingInterval
    @rtm?.dispose()

        break

  removeParticipantFromMaps: (nickname) ->
    return warn 'rtm is not set'  unless @rtm

    myWatchMapName     = "#{nickname}WatchMap"
    mySnapshotName     = "#{nickname}Snapshot"
