The Ionic framework is showing an error that says "'LoginCtrl' is not defined as a function."

I encountered an issue while attempting to set up simple navigation in my ionic application. The error message I received was: "Argument 'LoginCtrl' is not a function, got undefined in the Ionic. What could be causing this problem?"

Here is a snippet of my index.html:

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
    <title></title>

    <link href="lib/ionic/css/ionic.css" rel="stylesheet">
    <link href="css/style.css" rel="stylesheet">

    <!— IF using Sass (run gulp sass first), then uncomment below and remove the CSS includes above
    <link href="css/ionic.app.css" rel="stylesheet">
    —>

    <!— ionic/angularjs js —>
    <script src="lib/ionic/js/ionic.bundle.js"></script>
    <script src="lib/angular-route.js"></script>
    <script src="lib/angular-cookies.js"></script>


    <script src="lib/ng-cordova/dist/ng-cordova.min.js"></script>
    <!— cordova script (this will be a 404 during development) —>
    <script src="cordova.js"></script>

    <!— your app's js —>
    <script src="js/app.js"></script>
    <script src="js/restService/login.js"></script>
  </head>
  <body ng-app="starter">
          <ion-nav-view></ion-nav-view>
  </body>
</html>

In my app.js file:

angular.module('starter', ['ionic',
    'Authentication',
    'ngCookies'])

  .config(function($stateProvider, $urlRouterProvider) {
   //$urlRouterProvider.otherwise('views/main')

    $stateProvider.state('login', {
      url: '/login',
      controller: 'LoginCtrl',
      templateUrl: 'views/throbber.html'
    })
  })

  .run(['$ionicPlatform', '$rootScope', '$location', '$cookieStore', '$http',
    function($ionicPlatform, $rootScope, $location, $cookieStore, $http) {
    $ionicPlatform.ready(function() {
      try {
        if (window.cordova && window.cordova.plugins.Keyboard) {
         cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
          cordova.plugins.Keyboard.disableScroll(true);
        }
        if (window.StatusBar) {
          StatusBar.styleDefault();
        }
      } catch (ex) {
        alert(ex);
      }
    });
  }]);
  angular.module('Authentication', []);

My login.js file:

angular.module('Authentication')
.controller('LoginCtrl' [
  function () {
    alert('test');
  }
  ]);

The contents of throbber.html:

<div>THROBBER</div>

Answer №1

The login.js file is being loaded after app.js in your current setup. Due to this configuration, the LoginCtrl controller is not accessible to Angular, resulting in it being labeled as "undefined" or "not a function."

To resolve this issue, you must either integrate the contents of login.js into app.js or utilize your gulp/grunt task runner to merge the files together.

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