title: exception during the rendering of a template ("The block type sonata.Admin.block.admin_list does not exist")
body: <p><strong>Hi</strong>
  I am new to <strong>Symfony2</strong> and facing this problem while generating my Admin Panel. </p>
  
  <p><strong>An exception during the rendering of a template ("The block type sonata.Admin.block.admin_list does not exist") in SonataAdminBundle:Core:dashboard.html.twig at line 35</strong></p>
  
  <p>Can anyone please guide me, I'll be Grateful. I am following this documentation <a href="http://sonata-project.org/bundles/admin/2-2/doc/reference/getting_started.html" rel="nofollow">Sonata Admin Bundle.</a> </p>