Unable to write cache symfony2

Question

RuntimeException in ClassCollectionLoader.php line 239: 

Failed to write cache file \"/var/www/fareast/app/cache/dev/classes.php\".

I have this error

Answer 1

Setting 777 permissions do nothing, because when webserver user write folders to it, the folders belong to this user, and you, as command line user haven't access to them, and vice versa. Set permissions in correct way: http://symfony.com/doc/current/book/installation.html#book-installation-permissions