I need to work with xml and something doesn't work same it's always.
Is there a way to see errors in xml syntax, calls, or something.
I don't see nothing in Magento's log, or even in apache's log.
My question is in general, because all the time i did something in Magento 2 that implies an xml is horrible. Now the problem is with the ui_component following this guide
Maybe the ui_component layout isn't load, but i don't see the "add New" button.