我试图在产品类别页面上添加面包屑，也在产品详细信息页面上添加以下代码，但它不起作用 .

1. Add following code to theme default.xml and check page.top is not remove

<referenceContainer name="page.top">
                <block class="Magento\Theme\Block\Html\Breadcrumbs" name="breadcrumbs" as="breadcrumbs"/>
        </referenceContainer>

2. add fallowing code to catalog_category_view.xml

<referenceBlock name="breadcrumbs">
            <action method="addCrumb">
                <argument name="crumbName" xsi:type="string">Home</argument>
                <argument name="crumbInfo" xsi:type="array">
                    <item name="title" xsi:type="string">Home</item>
                    <item name="label" xsi:type="string">Home</item>
                    <item name="link" xsi:type="string">{{baseUrl}}</item>
                </argument>
            </action>
            <action method="addCrumb">
                <argument name="crumbName" xsi:type="string">Register</argument>
                <argument name="crumbInfo" xsi:type="array">
                    <item name="title" xsi:type="string">Register</item>
                    <item name="label" xsi:type="string">Register</item>
                </argument>
            </action>
        </referenceBlock>

3. Add following code to list.phtml

<?php echo $this->getLayout()->getBlock('breadcrumbs')->toHtml(); ?>

以上所有代码均无效 .

magento2 breadcrumbs