I tried
rake gems:unpack
rake gems:unpack:dependencies
Then i ran
rake gems:refresh_specs
which gave me this error
undefined method `installed_source_index' for #<Gem::SourceIndex:0x100549718>
then i ran this
rake gems:install
Then i ran script/console and tried to use the gem and error
ITunesSearchAPI.lookup(:id => 3996865, :entity => :song)
NameError: uninitialized constant ITunesSearchAPI
this is
RAILS_GEM_VERSION = '2.3.8'