ruby - yahoo music gem not working -

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i want use yahoo music gem, getting error because of activesupport gem.

my code

require 'yahoo-music'

edit 1:

eroor  loaderror: cannot load such file -- activesupport     /users/ashok/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:51:in `require'     /users/ashok/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:51:in `require'     /users/ashok/.rvm/gems/ruby-2.0.0-p247/gems/yahoo-music-0.1.0/lib/yahoo-music.rb:1:in `block in <top (required)>'     /users/ashok/.rvm/gems/ruby-2.0.0-p247/gems/yahoo-music-0.1.0/lib/yahoo-music.rb:1:in `each'     /users/ashok/.rvm/gems/ruby-2.0.0-p247/gems/yahoo-music-0.1.0/lib/yahoo-music.rb:1:in `<top (required)>'     /users/ashok/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:116:in `require'     /users/ashok/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:116:in `rescue in require'     /users/ashok/.rvm/rubies/ruby-2.0.0-p247/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_require.rb:122:in `require'     (irb):1     /users/ashok/.rvm/rubies/ruby-2.0.0-p247/bin/irb:16:in `<main>'

cannot load such file -- activesupport (loaderror)

https://github.com/mattt/yahoo-music :

additionally, yahoo-music has following gem dependencies:  * hpricot >= 0.6 * activesupport >= 2.1.0 * flexmock >= 0.8.2

...which means have install gems too. may have use ruby 1.8.7.


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