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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? (6)
How did I upgrade gymstar.ca from Magento 2.1.9 to 2.2.6? (1)
How to restore the frontend product gallery dimensions in a third-party design theme after upgrading Magento from 2.1.x to 2.2.x? (3)
How to remove «As low as» after upgrading Magento to 2.2.4? (1)
MageBright «Assign Order to Customer»: How to fix the «Invalid Document» / «Element 'resource': The attribute 'title' is required but missing» failure in Magento 2.2? (2)
OrangeHill Article: How to fix the «Invalid Document» / «Element 'resource': The attribute 'title' is required but missing» failure in Magento 2.2? (3)
How to break an infinite isVirtual() recursion while upgrading Magento from 2.1.x to 2.2.x? (1)
How to break an infinite getWeight() recursion while upgrading Magento from 2.1.x to 2.2.x? (1)
How to break an infinite getSku() recursion while upgrading Magento from 2.1.x to 2.2.x? (1)
How to fix the «Email has a wrong format» failure while upgrading Magento from 2.1.x to 2.2.x? (1)
How to fix the «Unable to unserialize value» failure while upgrading Magento from 2.1.x to 2.2.x? (1)
I need to upgrade Magento from 2.1.9 to 2.2.4 (11)
How did I upgrade earosacoustic.com from Magento 2.0.2 to 2.2.2? (2)
How did I upgrade laurengadams.com from Magento 2.1.7 to 2.2.5? (2)
How to fix «Element 'item': This element is not expected» after upgrading Magento to 2.2? (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? (2)
Why are the product titles disappeared after upgrading a Blank-based design theme from Magento 2.0.x to 2.1.x? (2)
How to upgrade extensions? (1)
How to diagnose the «Cron script readiness check failed» failure during a Magento 2 upgrade? (1)
How to upgrade Magento 2? (1)
How can a developer upgrade a Magento 2 store to the latest version? (5)
How to disable the «Cron script readiness check» on a Magento 2 upgrade? (2)
How to fix «Invalid credentials for 'https://repo.magento.com/packages.json', aborting» (2)
How can a merchant upgrade a Magento 2 store to the latest version? (2)