Magento version: 2.2.2
I need to add a custom field in address form on checkout page. So i did what is described on magento documentation: http://devdocs.magento.com/guides/v2.2/howdoi/checkout/checkout_new_field.html
Everything works ok, but when i complete all informations and press the next button to go to payment methods, an error ocurred in js:
"Cannot read property 'items' of undefined" on Magento_Checkout/js/model/totals.js
Any idea why ?