Urularjs Uncaught error: [$ injector: unpr]

I am developing a shopping website with java and I am using angurajs.

I have a problem with these files:

DashboardControll.js

    'use strict';
var app = angular.module("DashboardApp", []);

app.controller("DashboardCtrl", function($scope, $http, Authentication) {
    $http.get("/SalonNamestaja/namestaj")
    .success(function(response) {
        $scope.namestaji = response;
    });


        $http.get("/SalonNamestaja/ActiveUser")
        .success(function(response) {
            //console.log(response);


            $(".navbar-brand").empty();
            $(".navbar-brand").append("Dobrodosli " + response.name);

            $scope.activeUser = response;
        });

        console.log(Authentication.getUser());
});

app.run(function(Authentication) {
    Authentication.requestUser();
});

      

        
        
        
      

    

Authentication.js

'use strict';

angular.module('authApp').service('Authentication', function Authentication($q, $http) {
    var authenticatedUser = null;

    return {
        requestUser: function() {
            var deferred = $q.defer();

            $http.get("/SalonNamestaja/ActiveUser")
            .success(function(user) {
                console.log(user);
                authenticatedUser = user;

                deferred.resolve(user);
            }).error(function(error) {
                deferred.reject(error);
            });

            return deferred.promise;
        },

        getUser: function() {
            return authenticatedUser;
        },

        exists: function() {
            return authenticatedUser != null;
        }
    }
})

      

        
        
        
      

    

When I load the page in the browser, I get the error:

Unprepared error: [$ injector: unpr] http://errors.angularjs.org/1.2.17/ $ injector / unpr? p0 = AuthenticationProvider% 20% 3C-% 20Authentication

Please help me to solve this error.