Troubleshooting a camping trip?

I’m anxious to get camping[1], but when I try to run the sample app[2]
with:

camping home_page.rb

I get the source HTML in the terminal along with this errror:

##BEGIN ERROR
/usr/local/lib/ruby/gems/1.8/gems/camping-1.2.46/bin/camping:26:in
const_get': nil is not a symbol (TypeError) from /usr/local/lib/ruby/gems/1.8/gems/camping-1.2.46/bin/camping:26 from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.2.5/lib/active_support/dependencies.rb:207:in load’
from /usr/local/bin/camping:18
##END ERROR

Can anyone help me figure out what’s wrong?

Best,

Jacob

Links:
[1]: http://code.whytheluckystiff.net/camping/
[2]:
http://code.whytheluckystiff.net/camping/wiki/TheCampingShortShortExample

Jacob P.
Trisignia