[eluser]j4zzyh4ck3r[/eluser]
[quote author="yense" date="1302667079"]I'm making an example but it shows me an error
In order to use the Session class you are required to set an encryption key in your config file.
I should do to correct this error[/quote]
Go to the config.php in application/config/ then find $config['encryption_key'], give the value for the encryption key, it should work =)