Using git clone of repo and ruby 1.8.6 (2008-08-11 patchlevel 287) [universal-darwin9.0].

Running the default rake task which executes:

[:clean, :dist, :unified, :doc, :package, :clean_package_source]

fails running the :package task with this error:

** Invoke package (first_time)
** Invoke /Users/stephen/dev/javascript/scripty2-git/pkg/scripty2-2.0.0_a4.tar.gz (first_time)
** Invoke /Users/stephen/dev/javascript/scripty2-git/pkg/scripty2-2.0.0_a4 (first_time)
rake aborted!
Don't know how to build task 'README.rdoc'

Running:

rake package

by itself works fine.