Passenger is not running with rails ubuntu 12.04, is any budy can tell what is this error

/home/ubuntu/.rvm/gems/[email protected]_r/gems/passenger-3.0.0/lib/
phusion_passenger/standalone/runtime_installer.rb:225:in *': negative argument (ArgumentError) from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb: 225:inshow_progress’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb:
148:in block in install!' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb: 424:inblock (2 levels) in install_passenger_support_files’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb:
329:in block in run_rake_task!' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb: 324:inpopen’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb:
324:in run_rake_task!' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb: 423:inblock in install_passenger_support_files’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb:
422:in chdir' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb: 422:ininstall_passenger_support_files’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/runtime_installer.rb:
144:in install!' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/abstract_installer.rb:63:instart’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/start_command.rb:
294:in install_runtime' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/start_command.rb: 315:inensure_nginx_installed’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/start_command.rb:
59:in run' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/main.rb:93:inblock
in run_command’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/main.rb:48:in block in each_command' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/main.rb:43:ineach’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/main.rb:43:in
each_command' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/main.rb:91:inrun_command’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/lib/phusion_passenger/standalone/main.rb:62:in run!' from /home/ubuntu/.rvm/gems/[email protected]_r/gems/ passenger-3.0.0/lib/phusion_passenger/standalone/main.rb:39:inrun!’
from /home/ubuntu/.rvm/gems/[email protected]_r/gems/
passenger-3.0.0/bin/passenger:32:in <top (required)>' from /usr/local/bin/passenger:23:inload’
from /usr/local/bin/passenger:23:in `’