I'm trying to create my custom form on a backend module, I need to allow the admin to select some categories, so I wanted to use the magento standard category selector, well I add my field in this way:
$fieldset->addField(
'input_id',
'Magento\Catalog\Block\Adminhtml\Product\Helper\Form\Category',
[
'name' => 'input_name',
'label' => __('My label'),
'title' => __('My title'),
'required' => true
]
);
then in the .xml of my custom module (where I call the block with the form) I also added this css in the head
<head>
<title>
Settings
</title>
<css src="Magento_Catalog::web/catalog/category-selector.css" />
</head>
In my module now I could find the input, but the css is not loaded (I get error 404 in the console log) and It not work fine.
I already tryed to clean the cache and run the deploy of static content, but I still get the same error.
If is possible I would like to know how to add a short description for each input to made easier to understand what they have to input.
Thank you.