Q:

Getting "HTTP Error 500 (Internal Server Error)" while installing Codeigniter

I have no idea why this installation is giving me this problem but for some reason my lamp installation will not show the Codeigniter welcome page. At first I was getting:
403 forbidden
So I changed the permissions of the /var/www/ folder but now I get:

HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while
the server was attempting to fulfil the request.

I had everything working fine before I upgraded to 12.04 but since then, everything has fallen apart. I want the /var/www/ folder set up in a way that I can install several folders with different frameworks and content management systems for my different projects.
I just need a little help getting this server issue worked out.

A:

Try to change your permission to 755
$ sudo chmod -R 755 /var/www/CodeIgniterInstallFolder/

If nothing happens, try to look on your server log.
$ sudo gedit /var/log/apache2/error.log

