I got this error:  “Mcrypt PHP extension required. ”

Solution:
$: sudo php5enmod mcrypt

$: sudo /etc/init.d/apache2 restart

source:
http://askubuntu.com/questions/460837/mcrypt-extension-is-missing-in-14-04-server-for-mysql

Error in exception handler: The stream or file “…/storage/logs/laravel.log” could not be opened: failed to open stream

Solution:

$: sudo chmod 777 /var/…/storage –R

$: sudo chmod 777 /var/…. /uploads –R