bug-fix

How to fix «Element 'block', attribute 'class': [facet 'pattern'] The value '\Magento\Framework\View\Element\Template' is not accepted by the pattern `[A-Z][_a-zA-Z\d]*(\\[A-Z][_a-zA-Z\d]*)*`» after upgrading Magento to 2.2? [Upgrade] (3)
How to fix transactional (order) emails sending in Magento 2.2.5? [Issues] (1)
How to fix the Magento 2.2.x image URLs bug in Windows? [Issues] (2)
How to fix the «Unable to write file into directory: Access forbidden» bug in Windows? [Issues] (3)
How to fix the «failed to open stream: Invalid argument in vendor/magento/framework/Image/Adapter/Gd2.php» Magento 2.2 bug in Windows? [Issues] (2)
How to fix the Magento 2.2.4 / 2.2.5 product image magnifier issue? [Issues] (2)
«Can't create directory generated/code/Magento/Framework/App/ResourceConnection/.» in Windows [Issues] (5)
[PHP 7.2] My fix for «Warning: sizeof(): Parameter must be an array or an object that implements Countable in app/code/Magento/Sales/view/adminhtml/templates/order/totalbar.phtml on line 10» [Issues] (2)
«1062 Duplicate entry '3-' for key 'CATALOG_CATEGORY_PRODUCT_ATTRIBUTE_SET_ID_ATTRIBUTE_GROUP_CODE', query was: ALTER TABLE `eav_attribute_group` MODIFY COLUMN `attribute_group_code` varchar(255) NOT NULL COMMENT "Attribute Group Code"» in Magento 2.3 [Issues] (4)
How to repair the code compilation which fails without any messages? [Third-party extensions] (2)
How to fix «Unable to process binding "blockLoader: function (){return isLoading }"»? [Third-party extensions] (2)
How to fix «Cannot read property 'fn' of undefined» in Thelist/westyle/en_US/js/owlcarousel/owl.carousel.min.js? [Third-party extensions] (2)
How to fix «TheList\Contactusemail\Controller\Index\Contactusemail» / «Extra parameters passed to parent construct»? [Third-party extensions] (2)
How to fix the «Undefined offset: 1 in vendor/magento/framework/App/Utility/Files.php on line 748» failure on a `js-translation.json` HTTP request? [Third-party extensions] (3)
OrangeHill Article: How to fix the «Invalid Document» / «Element 'resource': The attribute 'title' is required but missing» failure in Magento to 2.2? [Upgrade] (2)
How to fix «Element 'item': This element is not expected» after upgrading Magento to 2.2? [Upgrade] (2)
How to fix «Element 'link', attribute 'href': The attribute 'href' is not allowed» / «The attribute 'src' is required but missing» after upgrading Magento to 2.2? [Upgrade] (2)
How to fix the «Class MagePal\GmailSmtpApp\Model\Transport contains 1 abstract method and must therefore be declared abstract or implement the remaining methods (Magento\Framework\Mail\TransportInterface::getMessage)» Magento 2.2 issue? [Third-party extensions] (2)
[aheadWorks Gift Card] How to fix the «Element 'remove': This element is not expected. Expected is one of ( attribute, block, referenceBlock, referenceContainer, container, move, uiComponent ).»? [Third-party extensions] (2)
How to fix the «Array to string conversion in Magento/Framework/DB/Adapter/Pdo/Mysql.php on line 2929» failure on a shipping address saving on the frontend checkoput page in Magento 2.1.x? [Issues] (1)
How to fix «Unable to process binding "if: function (){return maxCartItemsToDisplay < getCartLineItemsCount() }" Message: maxCartItemsToDisplay is not defined»? [Issues] (2)
How to fix «Unable to process binding "css: function (){return { empty:cart().summary_count == 0} }"» / «Message: cart is not a function»? [Issues] (2)
How to fix the «Required parameter 'theme_dir' was not passed» failure while saving a product in the backend? [Issues] (4)
[PHP 7.2] My fix for «Warning: count(): Parameter must be an array or an object that implements Countable in lib/internal/Magento/Framework/View/Design/Theme/ThemeList.php on line 237» [Issues] (7)
Magento 2 bug: «bin/magento module:enable» fails with the «The file "/composer.json" doesn't exist» message when a Composer package contains multiple Magento modules [Issues] (3)
The «There are no commands defined» / «An abstract factory could not create an instance of» resolution service [Services] (1)
[PHP 7.2] My fix for «Declaration of Magento\Customer\Model\ResourceModel\Address\Attribute\Source\Country::getAllOptions() must be compatible with Magento\Eav\Model\Entity\Attribute\Source\Table::getAllOptions($withEmpty = true, $defaultValues = false)» [Issues] (4)
[PHP 7.2] My fix for «Declaration of Magento\Customer\Model\ResourceModel\Address\Attribute\Source\CountryWithWebsites::getAllOptions() must be compatible with Magento\Eav\Model\Entity\Attribute\Source\Table::getAllOptions» [Issues] (2)
[PHP 7.2] My fix for «Declaration of Magento\Tax\Model\System\Config\Source\Tax\Country::toOptionArray($noEmpty = false) must be compatible with Magento\Directory\Model\Config\Source\Country::toOptionArray» [Issues] (2)
[PHP 7.2] My fix for «Declaration of Magento\Directory\Model\Config\Source\Country\Full::toOptionArray($isMultiselect = false) must be compatible with Magento\Directory\Model\Config\Source\Country::toOptionArray» [Issues] (2)