I watched the video and followed all the instruction of Fnordmetric railscast.

install redis

redis-server /usr/local/etc/redis.conf

Redis is working fine on my local(Ubuntu 12.04)

gem install fnordmetric

Installed successfully.

Created new fnordmetric.rb file

When I run ruby fnordmetric.rb on terminal

$ ruby fnordmetric.rb
./fnordmetric.rb:3: uninitialized constant FnordMetric (NameError)
from fnordmetric.rb:1:in `require'
from fnordmetric.rb:1

I am getting above error.

Please help me to fix this issue and get it working

Thanks in advance