询求帮忙！感激！！

[root@colud www.dousile.com]# bundle exec rake db:create rake aborted! Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. /usr/local/rvm/gems/ruby-1.9.3-p362/gems/execjs-1.4.0/lib/execjs/runtimes.rb:51:in autodetect' /usr/local/rvm/gems/ruby-1.9.3-p362/gems/execjs-1.4.0/lib/execjs.rb:5:inmodule:ExecJS' /usr/local/rvm/gems/ruby-1.9.3-p362/gems/execjs-1.4.0/lib/execjs.rb:4:in <top (required)>' /usr/local/rvm/gems/ruby-1.9.3-p362/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:inrequire' /usr/local/rvm/gems/ruby-1.9.3-p362/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in <top (required)>' /usr/local/rvm/gems/ruby-1.9.3-p362/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:inrequire' /usr/local/rvm/gems/ruby-1.9.3-p362/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in <top (required)>' /usr/local/rvm/gems/ruby-1.9.3-p362/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:inrequire' /usr/local/rvm/gems/ruby-1.9.3-p362/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in <top (required)>' /usr/local/rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:inrequire' /usr/local/rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in block (2 levels) in require' /usr/local/rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:ineach' /usr/local/rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in block in require' /usr/local/rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:ineach' /usr/local/rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in require' /usr/local/rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler.rb:128:inrequire' /opt/web/www.dousile.com/config/application.rb:7:in <top (required)>' /opt/web/www.dousile.com/Rakefile:5:inrequire' /opt/web/www.dousile.com/Rakefile:5:in <top (required)>' /usr/local/rvm/gems/ruby-1.9.3-p362/bin/ruby_noexec_wrapper:14:ineval' /usr/local/rvm/gems/ruby-1.9.3-p362/bin/ruby_noexec_wrapper:14:in `

' (See full trace by running task with --trace)