未知提供者：$state

Question

您好，我在通过 $injector 服务进行依赖项注入时遇到了一些问题。
我是 angular 的新手，所以我将从 IoC 容器的角度解释我是如何看待这一点的。

首先是问题：$injector 无法解析 $state。

core.js

(function() {
    'use strict';
     angular.module('app.core',['ui.router'])
         .config(function($stateProvider,$state){
           // ......
     });
}());

这是错误：

  Uncaught Error: [$injector:modulerr] Failed to instantiate module app due      to:
  Error: [$injector:modulerr] Failed to instantiate module app.core due to:
  Error: [$injector:unpr] Unknown provider: $state

我认为堆栈跟踪在这里没有多大意义......但以防万一我将其发布在问题的底部：

Index.html ：我只是想展示我引用 .js 文件的位置和顺序。

    <head>
    ....  <!-- pointing out that my .js are not here --> 
    </head>
    <body>

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

        <script src="components/core/lib/core.js"></script>
        **<!-- relevant to the EDIT part below -->
        <script src="components/something/something.js"></script>** 
    </body>

据我了解 angular 的提供商配方：

$stateProvider is the service provider which registers $state service to the IoC($injector) and does so by exposing $get member which the IoC knows to treat in a special way.

如果创建了“$stateProvider”并且可以自行注入它为什么没有向 IoC 注册“$state”服务

EDIT ：此外，我稍后还有另一个模块可以毫无问题地接收 $state 服务作为依赖项。

something.js

   (function() {
     'use strict';
      angular.module('app.something',['ui.router'])  
           .config(function($stateProvider, $urlRouterProvider,$state) {
             .... no problem receiving '$state' here
       })       
 }());

编辑 2：不好意思它在任何配置中都不起作用 VISHAL DAGA 是正确的。

堆栈跟踪：

  http://errors.angularjs.org/1.4.8/$injector/unpr?p0=%24state
  at http://localhost:9000/bower_components/angular/angular.js:68:12
  at http://localhost:9000/bower_components/angular/angular.js:4334:19
  at getService      (http://localhost:9000/bower_components/angular/angular.js:4482:39)
  at Object.invoke (http://localhost:9000/bower_components/angular/angular.js:4514:13)
  at runInvokeQueue (http://localhost:9000/bower_components/angular/angular.js:4429:35)
  at http://localhost:9000/bower_components/angular/angular.js:4438:11
    at forEach     (http://localhost:9000/bower_components/angular/angular.js:340:20)
    at loadModules   (http://localhost:9000/bower_components/angular/angular.js:4419:5)
    at http://localhost:9000/bower_components/angular/angular.js:4436:40
    at forEach      (http://localhost:9000/bower_components/angular/angular.js:340:20)
 http://errors.angularjs.org/1.4.8/$injector/modulerr?p0=app.core&p1=Error%3…    2F%2Flocalhost%3A9000%2Fbower_components%2Fangular%2Fangular.js%3A340%3A20)
    at http://localhost:9000/bower_components/angular/angular.js:68:12
    at http://localhost:9000/bower_components/angular/angular.js:4458:15
    at forEach   (http://localhost:9000/bower_components/angular/angular.js:340:20)
      at loadModules   (http://localhost:9000/bower_components/angular/angular.js:4419:5)
    at http://localhost:9000/bower_components/angular/angular.js:4436:40
    at forEach   (http://localhost:9000/bower_components/angular/angular.js:340:20)
    at loadModules   (http://localhost:9000/bower_components/angular/angular.js:4419:5)
      at createInjector   (http://localhost:9000/bower_components/angular/angular.js:4344:11)
      at doBootstrap   (http://localhost:9000/bower_components/angular/angular.js:1676:20)
      at bootstrap   (http://localhost:9000/bower_components/angular/angular.js:1697:12)
   http://errors.angularjs.org/1.4.8/$injector/modulerr?p0=app&p1=Error%3A%20%…F%2Flocalhost%3A9000%2Fbower_components%2Fangular%2Fangular.js%3A1697%3A12)

Answer 1

在配置阶段，它都是提供者，所以注入 $stateProvider 是正确的，但不是 $state。

删除 $state，问题就会消失。

Answer 2

我认为您将 $state 与 $stateProvider.state 混为一谈。正确使用见下文

(function() {
    'use strict';
     angular.module('app.core',['ui.router'])
         .config(function($stateProvider){
           $stateProvider
            .state('default', {....
     });
}());

未知提供者：$state

Unknown provider: $state

angularjs

angular-ui-router

angular-providers