 //= require action_cable
 //= require_self
 //= require_tree ./channels

  (function() {
    this.App || (this.App = {});
    App.cable = ActionCable.createConsumer();
   }).call(this);

 //= require action_cable
 //= require_self

  (function() {
    this.App || (this.App = {});
    App.cable = ActionCable.createConsumer();
   }).call(this);

Fix small require JS error
Fix small require JS error
