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Error: [$ injector: unpr] Unknown provider: $ stateProvider

I get an error while trying to use ui.router:

Uncaught Error: [$injector:modulerr] Failed to instantiate module bApp due to: Error: [$injector:unpr] Unknown provider: $stateProvider http://errors.angularjs.org/1.4.5/$injector/unpr?p0=%24stateProvider at REGEX_STRING_REGEXP (http://localhost:9000/bower_components/angular/angular.js:68:12) at http://localhost:9000/bower_components/angular/angular.js:4284:19 at getService (http://localhost:9000/bower_components/angular/angular.js:4432:39) at Object.invoke (http://localhost:9000/bower_components/angular/angular.js:4464:13) at runInvokeQueue (http://localhost:9000/bower_components/angular/angular.js:4379:35) at http://localhost:9000/bower_components/angular/angular.js:4388:11 at forEach (http://localhost:9000/bower_components/angular/angular.js:336:20) at loadModules (http://localhost:9000/bower_components/angular/angular.js:4369:5) at createInjector (http://localhost:9000/bower_components/angular/angular.js:4294:11) at doBootstrap (http://localhost:9000/bower_components/angular/angular.js:1655:20) http://errors.angularjs.org/1.4.5/$injector/modulerr?p0=bApp&p1=Error%3A%20…F%2Flocalhost%3A9000%2Fbower_components%2Fangular%2Fangular.js%3A1655%3A20) 

 angular.module('bApp', ['ui.router']); angular.module('bApp').config(function($stateProvider, $urlRouterProvider) { urlRouterProvider.otherwise('/'); $stateProvider .state('main', { url: "/", templateUrl: "/views/main.html" }) .state('register', { url: "/register", templateUrl: "/views/register.html" }); }); 
 <!doctype html> <html> <head> <meta charset="utf-8"> <title></title> <meta name="description" content=""> <meta name="viewport" content="width=device-width"> <!-- bower:css --> <link rel="stylesheet" href="bower_components/bootstrap/dist/css/bootstrap.css" /> <!-- endbower --> <!-- endbuild --> <!-- build:css(.tmp) styles/main.css --> <link rel="stylesheet" href="styles/bootstrap-hero.css"> <link rel="stylesheet" href="styles/main.css"> <!-- endbuild --> <!-- build:js(.) scripts/vendor.js --> <script src="bower_components/jquery/dist/jquery.js"></script> <script src="bower_components/angular/angular.js"></script> <script src="bower_components/bootstrap/dist/js/bootstrap.js"></script> <script src="bower_components/angular-ui-router/release/angular-ui-router.js"></script> <!-- endbuild --> </head> <body ng-app="bApp"> <!--[if lte IE 8]> <p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="http://browsehappy.com/">upgrade your browser</a> to improve your experience.</p> <![endif]--> <!-- Add your site or application content here --> <div class="header"> <div class="navbar navbar-default" role="navigation"> <div class="container"> <div class="navbar-header"> <a class="navbar-brand" href="#/">b</a> </div> <ul class="nav navbar-nav"> <li><a ui-sref="main">Home</a></li> <li><a ui-sref="register">Register</a></li> </ul> </div> </div> </div> <div ui-view></div> <!-- build:js({.tmp,app}) scripts/scripts.js --> <script src="scripts/app.js"></script> <script src="scripts/controllers/main.js"></script> <script src="scripts/controllers/register.js"></script> <script src="scripts/app.config.js"></script> <!-- endbuild --> </div> </body> </html>

I try to use ui.router but it does not work.

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2 answers

Since the angular script tags are in the html header, there is a small chance that not all modules will load when they are used.

According to Where should I put <script> tags in HTML markup? , you have two options:

1. Add defer tags to script tags in your head that may not work for all browsers:

 <script src="bower_components/jquery/dist/jquery.js" defer></script> <script src="bower_components/angular/angular.js" defer></script> <script src="bower_components/bootstrap/dist/js/bootstrap.js" defer></script> <script src="bower_components/angular-ui-router/release/angular-ui-router.js" defer></script>

2. Place them in the lower body. This will work for all browsers.

  ... <script src="bower_components/jquery/dist/jquery.js" defer></script> <script src="bower_components/angular/angular.js" defer></script> <script src="bower_components/bootstrap/dist/js/bootstrap.js" defer></script> <script src="bower_components/angular-ui-router/release/angular-ui-router.js" defer></script> <!-- build:js({.tmp,app}) scripts/scripts.js --> <script src="scripts/app.js"></script> <script src="scripts/controllers/main.js"></script> <script src="scripts/controllers/register.js"></script> <script src="scripts/app.config.js"></script> <!-- endbuild --> </div> </body>
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try installing angular router without ui

https://github.com/angular/bower-angular-route

do not forget to include it in the project.

 <script src="/js/bower_components/angular-route/angular-route.js"></script>
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