Kohana_Exception [ 0 ]: GD is either not installed or not enabled, check your configuration

i am getting the following exception in kohana 3 Kohana_Exception [ 0 ]: GD is either not installed or not enable开发者_JAVA百科d, check your configuration please advise.

You need to install GD for your PHP installation. I'm going to assume you're using the PHP packages from the Ubuntu, etc ... repositories in which case you need to install php5-gd.

sudo aptitude install php5-gd

Then restart Apache

sudo /etc/init.d/apache2 restart

If not then you need to consult the documentation for the software you use.