Symfony tutorial is wrong?

Symfony tutorial is wrong?

References

Reference NO 1

http://stackoverflow.com/questions/15189496/symfony-tutorial-is-wrong

Reference NO 2

http://symfony.com/doc/current/book/installation.html

Reference NO 3

http://symfony.com/doc/current/cookbook/security/custom_authentication_provider.html

Reference NO 4

http://symfony.com/legacy/doc/tutorial/1_2/en/my-first-project

Reference NO 5

http://symfony.com/legacy/doc/jobeet/1_4/en/22?orm=Propel

Reference NO 6

http://forum.symfony-project.org/index.php/m/98390/

Reference NO 7

https://github.com/FriendsOfSymfony/FOSUserBundle/issues/1133

Reference NO 8

#EANF#