Update Created.php

Declare module namespace before template path

Author: mageprince

app/code/Magento/ConfigurableProduct/Block/Adminhtml/Product/Attribute/NewAttribute/Product/Created.php

@@ -15,7 +15,7 @@ class Created extends \Magento\Backend\Block\Widget
     /**
      * @var string
      */
-    protected $_template = 'catalog/product/attribute/new/created.phtml';
+    protected $_template = 'Magento_ConfigurableProduct::catalog/product/attribute/new/created.phtml';
 
     /**
      * Core registry