javascript - AngularJS routing doesn't work -

i can't implement angularjs routing in page, when first made it, worked, after browser returns nothing. code: http://plnkr.co/edit/lixec0x6skzxkcr8hoap?p=catalogue

app:

    angular.module('$routingapp', ['ngroute'])         .config(['$routeprovider', function($routeprovider){             $routeprovider             .when('/', {                 templateurl: 'main.html'             })             .otherwise({                 redirectto: '/'             });         }]); 

the problem module name, suggest @sp00m, see updated plunkr link below :

angular.module('routingapp', ['ngroute'])     .config(['$routeprovider', function($routeprovider){         $routeprovider         .when('/', {             templateurl: 'main.html'         })         .otherwise({             redirectto: '/'         });     }]); 

plunkr