Symfony 1.4 - PDO连接错误:safe_mode / open_basedir禁止打开

I am using Mint 12,

I am trying to access to a symfony1 module in the browser and I get the next error message: 500 | Internal Server Error | Doctrine_Connection_Exception PDO Connection Error: safe_mode/open_basedir prohibits opening /home/user/projects/sf/form/symfony/data/database.db I was following this practical http://www.symfony-project.org/jobeet/1_4/Doctrine/en/13

There is not much information in relation in google. I found this link but it doesnt explains how to solve the problem. http://devzone.zend.com/597/sqlite-lean-mean-db-machine/

I tried setting safe_mode=On/Off in my php.ini file, but nothing happends. I really do not know how to solve this problem. Any help would be nice. As I know there is not a problem with the access to the database, its sqlite and other modules work without a problem in Symfony 1.4

Thank you very Much