Install and configure Symfony 2 and Sonata bundle

I found some bugs and inconsistencies while trying to install those 3 bundles by the book, so I decide to create that small tutorial. What we gonna install: Symfony Framework SonataAdminBundle SonataDoctrineORMAdminBundle SonataEasyExtendsBundle First we start by installing the Symfony Framework [cce_bash] composer create-project symfony/framework-standard-edition [/cce_bash] Now we jump to the sonata bundle [cce_bash] composer