Error filtering template: Invalid template file in module

I have this issue and I don’t know how to solve it. My phtml file is under: app/design/frontend/rwd/josefsteiner/template/home.phtml and i tried to include this phtml file into my CMS site like this: But i get always this error: Error filtering template: Invalid template file: ‘rwd_josefsteiner::home.phtml’ in module: ” block’s name: ‘magento\framework\view\element\template_0’ how to fix this…

Magento2 – How to override this file Magento\Bundle\Block\Catalog\Product\View\Type\Bundle\Options.php

How to override this file in Magento2 Magento\Bundle\Block\Catalog\Product\View\Type\Bundle\Options This code is in my di.xml <?xml version=”1.0″?> <config xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:noNamespaceSchemaLocation=”urn:magento:framework:ObjectManager/etc/config.xsd”> <preference for=”Magento\Bundle\Block\Catalog\Product\View\Type\Bundle\Options” type=”Magentoo\Bundle\Block\Catalog\Product\View\Type\Bundle\Option” /> </config>