Help with Breadcrumbs

Hi! friends i am  from Costa Rica and need some help with the breadcrumbs

This is the problem im trying to generate the breadcrumbs with this code in my view:

<?php foreach ($category as $cat): ?>


 <?php $this->Html->addCrumb('Categorias', array('controller' => 'categories', 'action' => 'index'));?>
 <?php $this->Html->addCrumb($cat['name'], array('controller' => 'categories', 'action' => 'view',$cat['id']));?>



<?php
    echo $this->Html->getCrumbs(' ► ', array(
    'text'=>'Inicio',
    'url' => array('controller' => 'anuncios', 'action' => 'index'),
    'escape' => false));
?>
<?php endforeach ?>


but jump a Notice:

Inicio ► Categorias ► Juguetes <<< Well formed breadcrumb

Notice (8): Undefined index: name [APP\View\Categories\view.ctp, line 276]

Notice (8): Undefined index: id [APP\View\Categories\view.ctp, line 276]

Inicio ► Categorias ► Juguetes ► Categorias ► <<< Bad formed breadcrumb

If you can help me with this error.

Thanks in advance!!!

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