AngularJS Alert: [$injector:unpr] Provider Not Recognized

After setting up the URL routes for the sportsStore app from an AngularJS book to learn, I'm encountering the following errors:

  1. Error: [$injector:unpr] Unknown provider: $templateRequestProvider <- $templateRequest <- $route <- ngViewDirective
  2. Error: [$injector:cdep] Circular dependency found: ngViewDirective

Despite checking that the versions of angular.js and angular-route.js are the same (the latest stable version) and reviewing the AngularJS API documentation for possible causes, I still can't seem to figure out why these errors are occurring.

I'm at a loss on how to proceed as interpreting the browser's developer tools' error messages shown in the screenshot seems impossible. Any guidance on resolving this issue would be greatly appreciated. https://i.sstatic.net/vU49b.png

Below is the snippet from app.html where the routes are defined to render specific views:

<!DOCTYPE html>
<html ng-app="sportsStore">

<head>
  <title>SportsStore</title>
  <script src="angular.js"></script>
  <link href="bootstrap.css" rel="stylesheet" />
  <link href="bootstrap-theme.css" rel="stylesheet" />
  <script>
    angular.module("sportsStore", ["customFilters", "cart", "ngRoute"])
      .config(function($routeProvider) {

        $routeProvider.when("/checkout", {
          templateUrl: "/views/checkoutSummary.html"
        });

        $routeProvider.when("/products", {
          templateUrl: "/views/productList.html"
        });

        $routeProvider.otherwise({
          templateUrl: "/views/productList.html"
        });
      });
  </script>
  <script src="controllers/sportsStore.js"></script>
  <script src="filters/customFilters.js"></script>
  <script src="controllers/productListControllers.js"></script>
  <script src="components/cart/cart.js"></script>
  <script src="ngmodules/angular-route.js"></script>
</head>

<body ng-controller="sportsStoreCtrl">
  <div class="navbar navbar-inverse">
    <a class="navbar-brand" href="#">SPORTS STORE</a>
    <cart-summary />
  </div>

  <div class="alert alert-danger" ng-show="data.error">
    Error ({{data.error.status}}). The product data was not loaded.
    <a href="/app.html" class="alert-link">Click here to try again</a>
  </div>
  <ng-view />
</body>

</html>

Interestingly, even without altering the code, another error pops up. This situation is quite perplexing:https://i.sstatic.net/tzmr2.png

Answer №1

Prioritizing the writing of your routes without loading the angular-route.js file first can cause issues. To resolve this, make sure to move your routes section between <script></script> tags and place it at the end.

By following this step, you should be able to fix the problem you are encountering.

Answer №2

Relocate

<script>
    angular.module("ecommerceApp", ["filters", "shoppingCart", "ngRoute"])
      .config(function($routeProvider) {

        $routeProvider.when("/checkout", {
          templateUrl: "/views/checkoutSummary.html"
        });

        $routeProvider.when("/products", {
          templateUrl: "/views/productList.html"
        });

        $routeProvider.otherwise({
          templateUrl: "/views/productList.html"
        });
      });
  </script>

Move this code to the end of the 'head' section since angular and ngRoute are not loaded yet. It is recommended to keep scripts at the bottom of the 'body'

Answer №3

@uamanager shared with me the solution - which is to remove the '/' right before the views in the templateUrl

<script>
    angular.module("sportsStore", ["customFilters", "cart", "ngRoute"])
    .config(function ($routeProvider) {

        $routeProvider.when("/checkout", {
            templateUrl: "views/checkoutSummary.html"
        });

        $routeProvider.when("/products", {
            templateUrl: "views/productList.html"
        });

        $routeProvider.otherwise({
            templateUrl: "views/productList.html"
        });
    });
</script>

Answer №4

Make sure to update your syntax for the route provider, as you only require one $routeProvider

$routeProvider
    .when('/Book/:bookId', {
        templateUrl: 'book.html',
        controller: 'BookController',    
   })
   .when('/Book/:bookId/ch/:chapterId', {
       templateUrl: 'chapter.html',
       controller: 'ChapterController'
  });

Take a look at this codepen example https://codepen.io/CarterTsai/pen/tfjqu

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