Logan – I used to get this error when the specs were contained inside Hobo. The specs contain a mini Rails app which in turn contains the whole of edge Rails which was causing this problem.
Ah! Did you do hobo --svn ? I forgot to update the SVN path in the hobo script. … Just uploaded the fix to rubyforge

I updated to 0.6.2 with gem and generated a new project with the hobo command. Running rake in the fresh project directory however yields
rake aborted!superclass mismatch for class Annotation
/home/logankoester/projects/pagetubes/trunk/freshproject/Rakefile:10
Any thoughts on this?