src/Resources/config/block.xml
<?xml version="1.0" encoding="UTF-8"?>
<container xmlns="http://symfony.com/schema/dic/services" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
<services>
<service id="core23_facebook.block.page_feed" class="Core23\FacebookBundle\Block\Service\PageFeedBlockService">
<tag name="sonata.block"/>
<argument type="service" id="twig"/>
<argument type="service" id="core23_facebook.connection"/>
<call method="setLogger">
<argument type="service" id="logger"/>
</call>
</service>
</services>
</container>