Ember.js: ObjectControllers not found -

i think have in place. cannot use `needs: ['shipping', 'checkout'] in payment controller not found, see error:

error while loading route: error: <appkit@controller:article/payment::ember1670> needs [ controller:checkout, controller:shipping ] not found 

the fun part is, have visited routes earlier because part of checkout process. take @ router:

    this.resource('articles', {path: '/product'}, function() { // fill articles navigation slider         this.resource('article', {path: '/:article_id'}, function() { // article information slider             // (...)             // have active article, thats why shipping underneath 'article'             this.route('shipping', {path: '/verzending'});             this.route('checkout', {path: '/betaalwijze'});             this.route('payment', {path: '/afrekenen'});         });     }); 

so visit: shipping checkout , payment , error. controllers objectcontrollers.

folder structure:

in shipping controller use needs include arraycontroller work. maybe has objectcontrollers?

thanks in advance hints!

edit: make them ember.controller not have effect.

see question: observes other childcontroller?

the state of objectcontroller seems not live long.