After upgrading to Magento 2.2.5 I got the error
Exception #0 (Magento\Framework\Config\Dom\ValidationException): Element 'referenceContainer', attribute 'after': The attribute 'after' is not allowed.
I understand that this is caused by an '
after' attribute in
referenceContainer in an xml file.
But how can I find out, which xml file and which element is causing the error?