问未捕获错误：[$injector:modulerr]无法实例化模块sangamApp，原因是:错误：[$injector:unpr]未知提供程序：$stateProvider

EN

'use strict';

angular.module('sangamApp')
  .config(['$stateProvider',function ($stateProvider) {
    $stateProvider
      .state('calendar', {
        url: '/calendar',
        template: '<calendar></calendar>'
      });
  }]);

'use strict';
(function(){

class CalendarComponent {
  constructor() {
    this.eventSources = [];
    
    this.uiConfig = {
       calendar : {
              editable : true,
              header : {
                        left : 'prev,next,today',
                        centre : 'title',
                        right : 'month,agendaWeek,agendaDay'
                       }
                  }
                }
  }
}

angular.module('sangamApp',['ui.calendar'])
  .component('calendar', {
    templateUrl: 'app/calendar/calendar.html',
    controller: CalendarComponent
  });

})();