Quando executo o comando, aparecer o seguinte resultado:
marcos@marcos-Aspire-4736Z:~/job_board > rails server
/home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/execjs-2.2.1/lib/execjs/runtimes.rb:51:in autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/execjs-2.2.1/lib/execjs.rb:5:in'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/execjs-2.2.1/lib/execjs.rb:4:in <top (required)>'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:inrequire'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/coffee-script-2.2.0/lib/coffee_script.rb:1:in <top (required)>'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:inrequire'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/coffee-script-2.2.0/lib/coffee-script.rb:1:in <top (required)>'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:inrequire'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/coffee-rails-3.2.2/lib/coffee-rails.rb:1:in <top (required)>'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/bundler-1.6.3/lib/bundler/runtime.rb:76:inrequire'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/bundler-1.6.3/lib/bundler/runtime.rb:76:in block (2 levels) in require'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/bundler-1.6.3/lib/bundler/runtime.rb:72:ineach'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/bundler-1.6.3/lib/bundler/runtime.rb:72:in block in require'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/bundler-1.6.3/lib/bundler/runtime.rb:61:ineach'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/bundler-1.6.3/lib/bundler/runtime.rb:61:in require'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/bundler-1.6.3/lib/bundler.rb:132:inrequire'
from /home/marcos/job_board/config/application.rb:7:in <top (required)>'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/railties-3.2.19/lib/rails/commands.rb:53:inrequire'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/railties-3.2.19/lib/rails/commands.rb:53:in block in <top (required)>'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/railties-3.2.19/lib/rails/commands.rb:50:intap'
from /home/marcos/.rvm/gems/ruby-1.9.3-p545/gems/railties-3.2.19/lib/rails/commands.rb:50:in <top (required)>'
from script/rails:6:inrequire'
from script/rails:6:in `'
