I updated the magento from version 2.1.2 to 2.2.7.
When i want to go to the product page then i see this error:
Exception #0 (Magento\Framework\Config\Dom\ValidationException): Element 'referenceContainer', attribute 'before': The attribute 'before' is not allowed.
Line: 1508
Element 'referenceBlock', attribute 'ifconfig': The attribute 'ifconfig' is not allowed.
Line: 1624
I have found the information that it is no longer allowed and should be removed but I'm not sure if I understand correctly.
Example i have a block like this:
<?xml version="1.0" encoding="UTF-8"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../lib/internal/Magento/Framework/App/etc/routes.xsd">
<router id="admin">
<route id="rewards" frontName="rewards">
<module name="Mirasvit_Rewards" before="Magento_Adminhtml"/>
</route>
</router>
</config>
Do I have to remove the tag before and whether it should look like this:
<module name="Mirasvit_Rewards"/>
Similarly for ifconfig:
<?xml version="1.0"?>
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<referenceBlock name="page.actions.toolbar">
<block ifconfig="pdfpro/general/enabled" class="Vnecoms\PdfPro\Block\Adminhtml\Sales\Order\PrintButton" as="pdfpro_print_button"/>
</referenceBlock>
</body>
</page>
I will be grateful for any help!
