problem with "bundle exec rake "shopqi:bootstrap[mysql]"

[Ray1988]

$ bundle exec rake "shopqi:bootstrap[mysql]"

/home/ec2-user/.rvm/gems/ruby-2.1.1/gems/chinese_pinyin-0.3.0/lib/chinese_pinyin.rb:2: warning: variable $KCODE is no longer effective; ignored
rake aborted!
Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes.

[4268146]

NoMethodError: undefined method `Factory'
in shopqi/db/seeds/development/shop.seeds.rb:9

[wjiachao]

chinese_pinyin variable $KCODE is no longer effective