following readme - error on '$ building'

[rowntreerob]

--EDIT-- this is probably a dupe of one of the other issues...

environment:
rob@ ~$ gem --version
1.8.11
rob@ ~$ ruby --version
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-linux]

stdout:

rob@ ~$ building

/usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require': cannot load such file -- bundler/setup (LoadError) from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire'
from /var/lib/gems/1.9.1/gems/building-1.1.2/lib/building.rb:3:in <top (required)>' from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:inrequire'
from /usr/lib/ruby/1.9.1/rubygems/custom_require.rb:36:in require' from /var/lib/gems/1.9.1/gems/building-1.1.2/bin/building:3:in<top (required)>'
from /usr/local/bin/building:19:in load' from /usr/local/bin/building:19:in

'

[eugeneware]

I got the same. The solution was to make sure you install bundler:

$ sudo gem install bundler

Probably should be in the README for those who are not rubyists :-)