Raspberry Pi - Error installing lighttpd - fixed!

Anyway...  I want to serve up from simple content over the web from my Raspberry Pi, so I thought, I know the tool for that - lighttpd (aka lighty)!

Unfortunately when I tried to install it I was faced with an error (pretty unusual in my experience of using apt-get) which stated:

chown: invalid group: `www-data:www-data'
dpkg: error processing lighttpd (--configure):
subprocess installed post-installation script returned error exit status 1

How annoying, anyway a little bit of research suggested that the group www-data doesn't exist on the Raspberry Pi distro of Debian, and hence why it was failing.  A pretty easy fix - add the group "www-data" and re-run the install.

sudo groupadd www-data

sudo apt-get install lighttpd

That was it, worked like a charm!