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Angular: What does this error in the console mean?

Error: [ng:areq] http://errors.angularjs.org/1.5.0/ng/areq?p0=aboutController&p1=not%20aNaNunction%2C%20got%20undefined
    at Error (native)
    at https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js:6:416
    at sb (https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js:23:63)
    at Sa (https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js:23:150)
    at https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js:86:318
    at A.link (http://port-80-x81rup9szl.treehouse-app.com/vendor/angular-route.min.js:7:274)
    at ka (https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js:79:16)
    at u (https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js:66:326)
    at g (https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js:58:136)
    at https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js:57:279


var app = angular.module('appName', ['ngRoute']);

app.config(function($routeProvider) {
  .when('/', {
    controller: 'homeController',
    templateUrl: '../views/home.html'
  .when('/about', {
    controller: 'aboutController',
    templateUrl: '../views/about.html'
    redirectTo: '/'

Controller #1

app.controller('aboutController', ['$scope', function($scope) {


Controller #2

app.controller('homeController', ['$scope', function($scope) {



<!doctype html>
    <title>Angular App</title>
    <link rel="stylesheet" href="css/bootstrap.min.css">
    <link rel="stylesheet" href="css/app.css">
  <body ng-app="appName">

    <div class="container">
      <div class="row">
        <div ng-view></div>

    <!-- angular -->
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.0/angular.min.js"></script>
    <script src="vendor/angular-route.min.js"></script>
    <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular-animate.js"></script>
    <script src="js/app.js"></script>
    <!-- bootstrap -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.0/jquery.min.js"></script>
    <script src="js/bootstrap.min.js"></script>
    <!-- controllers -->
    <script src="js/controllers/homeController.js"></script>
    <!-- directives -->

    <!-- services -->
    <script src="js/services/data.js"></script>

1 Answer

Aidan Pine
Aidan Pine
9,210 Points

It looks like it has something to do with your angular.module. Perhaps you have it defined incorrectly, or defined in two places, or you have two modules with the same name. Could also be that you created a new module and didn't inject it into your application. Can you post the code?

https://docs.angularjs.org/error/ng/areq https://stackoverflow.com/questions/21673404/error-ngareq-from-angular-controller

Yes i can. One moment...

Aidan Pine
Aidan Pine
9,210 Points

Have you included ng-app="appName" in index.html somewhere?