When i enable the developer mode on my Magento 2.3.3 instance i get the following error message when calling category pages in webbrowser:
Exception #0 (Magento\Framework\Config\Dom\ValidationException): Element 'block', attribute 'remove': The attribute 'remove' is not allowed.
Line: 976
Element 'block', attribute 'remove': The attribute 'remove' is not allowed.
Line: 980
Exception #0 (Magento\Framework\Config\Dom\ValidationException): Element 'block', attribute 'remove': The attribute 'remove' is not allowed.
Line: 976
Element 'block', attribute 'remove': The attribute 'remove' is not allowed.
Line: 980
<pre>#1 Magento\Framework\Config\Dom->__construct() called at [vendor/magento/framework/ObjectManager/Factory/AbstractFactory.php:116]
#2 Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject() called at [vendor/magento/framework/ObjectManager/Factory/Dynamic/Developer.php:66]
#3 Magento\Framework\ObjectManager\Factory\Dynamic\Developer->create() called at [vendor/magento/framework/ObjectManager/ObjectManager.php:56]
#4 Magento\Framework\ObjectManager\ObjectManager->create() called at [vendor/magento/framework/Config/DomFactory.php:43]
#5 Magento\Framework\Config\DomFactory->createDom() called at [vendor/magento/framework/View/Model/Layout/Update/Validator.php:141]
#6 Magento\Framework\View\Model\Layout\Update\Validator->isValid() called at [vendor/magento/framework/View/Model/Layout/Merge.php:494]
#7 Magento\Framework\View\Model\Layout\Merge->_validateMergedLayout() called at [vendor/magento/framework/View/Model/Layout/Merge.php:470]
#8 Magento\Framework\View\Model\Layout\Merge->load() called at [generated/code/Magento/Framework/View/Model/Layout/Merge/Interceptor.php:193]
#9 Magento\Framework\View\Model\Layout\Merge\Interceptor->load() called at [vendor/magento/framework/View/Layout/Builder.php:86]
#10 Magento\Framework\View\Layout\Builder->loadLayoutUpdates() called at [vendor/magento/framework/View/Layout/Builder.php:63]
#11 Magento\Framework\View\Layout\Builder->build() called at [vendor/magento/framework/View/Page/Config.php:224]
#12 Magento\Framework\View\Page\Config->build() called at [vendor/magento/framework/View/Page/Config.php:587]
#13 Magento\Framework\View\Page\Config->getElementAttribute() called at [vendor/magento/framework/View/Page/Config.php:545]
#14 Magento\Framework\View\Page\Config->addBodyClass() called at [vendor/magento/module-catalog/Controller/Category/View.php:217]
#15 Magento\Catalog\Controller\Category\View->execute() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#16 Magento\Catalog\Controller\Category\View\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#17 Magento\Catalog\Controller\Category\View\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#18 Magento\Catalog\Controller\Category\View\Interceptor->___callPlugins() called at [generated/code/Magento/Catalog/Controller/Category/View/Interceptor.php:26]
#19 Magento\Catalog\Controller\Category\View\Interceptor->execute() called at [vendor/magento/framework/App/Action/Action.php:108]
#20 Magento\Framework\App\Action\Action->dispatch() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#21 Magento\Catalog\Controller\Category\View\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#22 Magento\Catalog\Controller\Category\View\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#23 Magento\Catalog\Controller\Category\View\Interceptor->___callPlugins() called at [generated/code/Magento/Catalog/Controller/Category/View/Interceptor.php:39]
#24 Magento\Catalog\Controller\Category\View\Interceptor->dispatch() called at [vendor/magento/framework/App/FrontController.php:159]
#25 Magento\Framework\App\FrontController->processRequest() called at [vendor/magento/framework/App/FrontController.php:99]
#26 Magento\Framework\App\FrontController->dispatch() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#27 Magento\Framework\App\FrontController\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#28 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/module-store/App/FrontController/Plugin/RequestPreprocessor.php:94]
#29 Magento\Store\App\FrontController\Plugin\RequestPreprocessor->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#30 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/module-page-cache/Model/App/FrontController/BuiltinPlugin.php:69]
#31 Magento\PageCache\Model\App\FrontController\BuiltinPlugin->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#32 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#33 Magento\Framework\App\FrontController\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/App/FrontController/Interceptor.php:26]
#34 Magento\Framework\App\FrontController\Interceptor->dispatch() called at [vendor/magento/framework/App/Http.php:137]
#35 Magento\Framework\App\Http->launch() called at [generated/code/Magento/Framework/App/Http/Interceptor.php:24]
#36 Magento\Framework\App\Http\Interceptor->launch() called at [vendor/magento/framework/App/Bootstrap.php:261]
#37 Magento\Framework\App\Bootstrap->run() called at [pub/index.php:40]
</pre>
Im using a child theme based on the porto theme. My app/design/frontend/Smartwave/porto_child/Magento_Catalog/layout/catalog_category_view.xml
looks as follows:
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="2columns-left" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<referenceContainer name="page.top">
<block class="Magento\Catalog\Block\Category\View" name="category_banner" template="category/banner.phtml" ifconfig="porto_settings/category/category_description" before="-"/>
</referenceContainer>
<referenceContainer name="content">
<!-- <block class="Smartwave\Porto\Block\Template" name="category_overview" template="Magento_Catalog::category/view.phtml"/> -->
<block class="Magento\Catalog\Block\Category\View" name="category_desc_main_column" template="category/desc_main_column.phtml" ifconfig="porto_settings/category/category_description" before="category.products" remove="1"/>
</referenceContainer>
<referenceBlock name="category.image" remove="1"/>
<referenceContainer name="sidebar.main" remove="1">
<block class="Smartwave\Porto\Block\Template" name="category_view_custom_block" after="-" template="Magento_Catalog::category/custom_block.phtml" remove="1"/>
</referenceContainer>
</body>
<move element="category.view.container" destination="content" after="-"/>
</page>
How can I get rid of the error messages, what have I missed?