Declare module namespace

Author: mageprince

app/code/Magento/AdvancedSearch/Block/SearchData.php

@@ -30,7 +30,7 @@ abstract class SearchData extends Template implements SearchDataInterface
     /**
      * @var string
      */
-    protected $_template = 'search_data.phtml';
+    protected $_template = 'Magento_AdvancedSearch::search_data.phtml';
 
     /**
      * @param Template\Context $context

app/code/Magento/Catalog/Block/Adminhtml/Product/Attribute/Set/Main/Tree/Attribute.php

@@ -14,5 +14,5 @@ class Attribute extends \Magento\Backend\Block\Template
     /**
      * @var string
      */
-    protected $_template = 'catalog/product/attribute/set/main/tree/attribute.phtml';
+    protected $_template = 'Magento_Catalog::catalog/product/attribute/set/main/tree/attribute.phtml';
 }

app/code/Magento/Eav/Block/Adminhtml/Attribute/Edit/Js.php

@@ -18,7 +18,7 @@ class Js extends \Magento\Backend\Block\Template
      * @var string
      */
 
-    protected $_template = 'attribute/edit/js.phtml';
+    protected $_template = 'Magento_Eav::attribute/edit/js.phtml';
 
     /**
      * @var \Magento\Eav\Model\Adminhtml\System\Config\Source\Inputtype

app/code/Magento/OfflinePayments/Block/Form/Banktransfer.php

@@ -15,5 +15,5 @@ class Banktransfer extends \Magento\OfflinePayments\Block\Form\AbstractInstructi
      *
      * @var string
      */
-    protected $_template = 'form/banktransfer.phtml';
+    protected $_template = 'Magento_OfflinePayments::form/banktransfer.phtml';
 }

app/code/Magento/OfflinePayments/Block/Form/Cashondelivery.php

@@ -15,5 +15,5 @@ class Cashondelivery extends \Magento\OfflinePayments\Block\Form\AbstractInstruc
      *
      * @var string
      */
-    protected $_template = 'form/cashondelivery.phtml';
+    protected $_template = 'Magento_OfflinePayments::form/cashondelivery.phtml';
 }

app/code/Magento/Payment/Block/Info/Instructions.php

@@ -23,7 +23,7 @@ class Instructions extends \Magento\Payment\Block\Info
     /**
      * @var string
      */
-    protected $_template = 'info/instructions.phtml';
+    protected $_template = 'Magento_Payment::info/instructions.phtml';
 
     /**
      * Get instructions text from order payment

app/code/Magento/ProductAlert/Block/Email/Price.php

@@ -15,7 +15,7 @@ class Price extends \Magento\ProductAlert\Block\Email\AbstractEmail
     /**
      * @var string
      */
-    protected $_template = 'email/price.phtml';
+    protected $_template = 'Magento_ProductAlert::email/price.phtml';
 
     /**
      * Retrieve unsubscribe url for product

app/code/Magento/ProductAlert/Block/Email/Stock.php

@@ -15,7 +15,7 @@ class Stock extends \Magento\ProductAlert\Block\Email\AbstractEmail
     /**
      * @var string
      */
-    protected $_template = 'email/stock.phtml';
+    protected $_template = 'Magento_ProductAlert::email/stock.phtml';
 
     /**
      * Retrieve unsubscribe url for product

app/code/Magento/Rss/Block/Feeds.php

@@ -16,7 +16,7 @@ class Feeds extends \Magento\Framework\View\Element\Template
     /**
      * @var string
      */
-    protected $_template = 'feeds.phtml';
+    protected $_template = 'Magento_Rss::feeds.phtml';
 
     /**
      * @var \Magento\Framework\App\Rss\RssManagerInterface

app/code/Magento/Shipping/Block/Adminhtml/Order/Packaging/Grid.php

@@ -10,7 +10,7 @@ class Grid extends \Magento\Backend\Block\Template
     /**
      * @var string
      */
-    protected $_template = 'order/packaging/grid.phtml';
+    protected $_template = 'Magento_Shipping::order/packaging/grid.phtml';
 
     /**
      * Core registry

app/code/Magento/Shipping/Block/Order/Shipment.php

@@ -18,7 +18,7 @@ class Shipment extends \Magento\Framework\View\Element\Template
     /**
      * @var string
      */
-    protected $_template = 'order/shipment.phtml';
+    protected $_template = 'Magento_Shipping::order/shipment.phtml';
 
     /**
      * Core registry

app/code/Magento/Signifyd/Block/Fingerprint.php

@@ -42,7 +42,7 @@ class Fingerprint extends Template
      * @var string
      * @since 100.2.0
      */
-    protected $_template = 'fingerprint.phtml';
+    protected $_template = 'Magento_Signifyd::fingerprint.phtml';
 
     /**
      * @param Context $context

app/code/Magento/UrlRewrite/Block/Catalog/Category/Tree.php

@@ -27,7 +27,7 @@ class Tree extends \Magento\Catalog\Block\Adminhtml\Category\AbstractCategory
     /**
      * @var string
      */
-    protected $_template = 'categories.phtml';
+    protected $_template = 'Magento_UrlRewrite::categories.phtml';
 
     /**
      * Adminhtml data

app/code/Magento/UrlRewrite/Block/Selector.php

@@ -18,7 +18,7 @@ class Selector extends \Magento\Backend\Block\Template
     /**
      * @var string
      */
-    protected $_template = 'selector.phtml';
+    protected $_template = 'Magento_UrlRewrite::selector.phtml';
 
     /**
      * Set block template and get available modes

app/code/Magento/User/Block/Role/Tab/Edit.php

@@ -19,7 +19,7 @@ class Edit extends \Magento\Backend\Block\Widget\Form implements \Magento\Backen
     /**
      * @var string
      */
-    protected $_template = 'role/edit.phtml';
+    protected $_template = 'Magento_User::role/edit.phtml';
 
     /**
      * Root ACL Resource

app/code/Magento/Weee/Block/Renderer/Weee/Tax.php

@@ -32,7 +32,7 @@ class Tax extends \Magento\Backend\Block\Widget implements
     /**
      * @var string
      */
-    protected $_template = 'renderer/tax.phtml';
+    protected $_template = 'Magento_Weee::renderer/tax.phtml';
 
     /**
      * Core registry

app/code/Magento/Widget/Block/Adminhtml/Widget/Instance/Edit/Tab/Main/Layout.php

@@ -27,7 +27,7 @@ class Layout extends Template implements RendererInterface
     /**
      * @var string
      */
-    protected $_template = 'instance/edit/layout.phtml';
+    protected $_template = 'Magento_Widget::instance/edit/layout.phtml';
 
     /**
      * @var \Magento\Catalog\Model\Product\Type

app/code/Magento/Wishlist/Block/Rss/EmailLink.php

@@ -21,7 +21,7 @@ class EmailLink extends Link
     /**
      * @var string
      */
-    protected $_template = 'rss/email.phtml';
+    protected $_template = 'Magento_Wishlist::rss/email.phtml';
 
     /**
      * @return array

app/code/Magento/Wishlist/Block/Share/Email/Items.php

@@ -20,7 +20,7 @@ class Items extends \Magento\Wishlist\Block\AbstractBlock
     /**
      * @var string
      */
-    protected $_template = 'email/items.phtml';
+    protected $_template = 'Magento_Wishlist::email/items.phtml';
 
     /**
      * Retrieve Product View URL