I've searched all the manuals for the answer, but can not find it at all.
I'm trying to apply the CMF to my existing Symfony 2 project using this doc: http://symfony.com/doc/master/cmf/tutorials/creating_cms_using_cmf_and_sonata.html
Then, I've got the Tree problems explained here: http://symfony.com/doc/master/cmf/tutorials/creating_cms_using_cmf_and_sonata.html#tree-problems
And I tried to fill some fixtures using PHPCR like it explained here: http://symfony.com/doc/master/cmf/tutorials/using_blockbundle_and_contentbundle.html#using-the-phpcr
But I had no luck at all with this strange red-backgrounded error:
The class 'Symfony\Cmf\Bundle\BlockBundle\Doctrine\Phpcr\SimpleBlock' was not found in the chain configured namespaces Doctrine\ODM\PHPCR\Document, Symfony\Component\Routing, Symfony\Cmf\Bundle\RoutingBundle\Model, Symfony\Cmf\Bundle\RoutingBundle\Doctrine\Phpcr, Symfony\Cmf\Bundle\MenuBundle\Model, Symfony\Cmf\Bundle\MenuBundle\Doctrine\Phpcr
What does it mean and how to heal this strange behaviour?
Also, does anybody have a good explanation or tutorials how to use this great Symfony-CMF things?