I'm getting this error in my store:
Invalid XML in file /Library/WebServer/Documents/Magento/app/design/frontend/vendor/vendor_theme/etc/view.xml: Element 'theme': No matching global declaration available for the validation root. Line: 2
My code
<?xml version="1.0" encoding="UTF-8"?>
<theme xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Config/etc/theme.xsd">
<title>Vendor</title>
<parent>Magento/blank</parent>
</theme>
I've run this through xml check sites. It's valid according to them and my knowledge of XML.
I'm new to this framework. Thanks.