Error: error:unpr Unknown Provider

Question

MY MAIN CONTROLLER

var MyApp = angular.module('ionicApp', ['ionic', 'MobiNav', 'authFactory']);

CONTROLLER CONSUMING FACTORY

MyApp.controller('AuthUser', ['$scope', 'authFactoryService', function ($scope, authFactoryService) {
    $scope.showForm = true;
    $scope.UserDataLogin = function () {
        var loginData = {};
        $scope.registration = {
            userName: $scope.Auth.userName,
            password: $scope.Auth.password,
            confirmPassword: $scope.Auth.password
        };
        authFactoryService.SaveRegistration(registration);
        window.scope = loginData;
    };
}
]
);

THIS IS THE FACTORY IN SEPERATE FILE

   var AuthService = angular.module('authFactory', []);
AuthService.factory('authFactoryService', [
    '$http', '$q', '$scope', function ($http, $q, $scope) {
    return {
        SaveRegistration: function() {
            var urlBase = 'http://localhost:48868/';
            $http.post(urlBase + 'api/account/register', registration).then(function(response) {
                    $scope.savedSuccessfully = true;
                    $scope.message = "User has been registered successfully, you will be redicted to login page in 2 seconds.";
                },
                function(response) {
                    var errors = [];
                    for (var key in response.data.modelState) {
                        for (var i = 0; i < response.data.modelState[key].length; i++) {
                            errors.push(response.data.modelState[key][i]);
                        }
                    }
                    $scope.message = "Failed to register user due to:" + errors.join(' ');
                });
        }

    };
}]);

error what i'm getting Error: [$injector:unpr] http://errors.angularjs.org/1.2.17/$injector/unpr?p0=copeProvider%20%3C-%20%24scope%20%3C-%20authFactoryService at Error (native)

why it is unable to load authFactoryService service

Answer 1

Finally Figured the dug, $scope was again injected in Factory replaced this

AuthService.factory('authFactoryService', [
    '$http', '$q', '$scope', function ($http, $q, $scope) {}]);

to this (just removed the $scope which was again injected in factory for dependency.

   AuthService.factory('authFactoryService', [
        '$http', '$q', function ($http, $q, $scope) {}]);