Encountering the issue of "Unknown provider" while injecting Angular modules

After following a tutorial on organizing an Angular project, I came up with a structure where I have a ng directory containing all my controllers, services, and the routes.js file. These are then bundled together into an app.js through my configuration in gulp.

The content of my module.js is as follows:

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

Here's a snippet from my routes.js:

angular.module('app')
.config(function ($routeProvider) {
    .when('/login', { controller: 'LoginCtrl', templateUrl: 'login.html'})
});

This is how my functional LoginCtrl appears:

angular.module('app')
.controller('LoginCtrl', function($scope, UserSvc) {
    $scope.login = function(username, password) {
        ...
    }
})

Although the tutorial did not utilize any Angular modules, I decided to experiment with one by adding ui.bootstrap to my page from a CDN. Consequently, I attempted to modify the LoginCtrl like so:

angular.module('app')
.controller('LoginCtrl', function($scope, $uibModal, UserSvc) {
    ...
})

However, this change resulted in the following error message:

"Error: [$injector:unpr] Unknown provider: $templateRequestProvider <- $templateRequest <- $uibModal

I am perplexed about what might be causing this error. All tutorials I've come across handle module loading similarly, with the only distinction being that they don't appear to integrate a router.

PS: It's worth noting that when using an empty module list [], the same error arises. Similarly, if I specify a non-existent module ['helloworld'], I receive an error stating that 'Module 'helloworld' is not available'. Therefore, I presume that my `ui.bootstrap' module is indeed accessible.

EDIT: Check out the Plunker fiddle here: http://plnkr.co/edit/FWHQ5ZDAByOWsL9YeMUH?p=preview

Answer №1

When working with Angular, it's important to not only include the angular route module but also actively utilize it in your app module creation.

This involves utilizing Dependency Injection (DI) for routing purposes.

To incorporate the route module, use the code snippet:

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

For more detailed information on using Angular routes, please refer to the official route documentation.

Answer №2

Eliminate the inclusion of ['ui.bootstrap'] in the controller. It is recommended to add dependencies only once, but in this case, it has been added twice causing the second list of dependencies to override the first one.

angular.module('app')
.controller('LoginCtrl', function($scope, UserSvc) {
... })

Answer №3

It appears that there is an issue with your routes snippet. Consider moving the 'when' call outside of $routeProvider and possibly declaring $routeProvider as an injected value if it is not being recognized correctly:

angular.module('app')
    .config(["$routeProvider", function ($routeProvider) {
        $routeProvider.when('/login', { controller: 'LoginCtrl', templateUrl: 'login.html'})
}]);

Answer №4

Upon reviewing your provided link, it appears there is a significant issue with the compatibility between Angular and ui-bootstrap versions. The dashboard for ui-bootstrap states that 0.12.0 is the final version supporting AngularJS 1.2.x. Despite attempting various combinations, I have found that it does not function properly with your current angular version. I recommend updating both your angular and ui-bootstrap versions to the latest releases in order to resolve this issue.

You can test a working example on this Plukr

    <script src='https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.8/angular.min.js'></script>
    <script src='https://ajax.googleapis.com/ajax/libs/angularjs/1.2.18/angular-route.js'></script>    // Be sure to update this to the newest version as well.
    <script src='https://cdnjs.cloudflare.com/ajax/libs/angular-ui-bootstrap/1.0.3/ui-bootstrap.min.js'></script>
    <script src='./app.js'></script>

If you prefer to stick with your current angular version, I recommend conducting some research and experimentation. Try different versions of ui-bootstrap, and if issues persist, feel free to submit a pull request.

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