对于同一版本的capistrano和相同的Rails应用程序，同事cap -vT unicorn的同事得到的结果不同{/ p>
app_name coworker$ cap -vT unicorn
cap unicorn:add_worker # Add a new worker
cap unicorn:duplicate # Duplicate Unicorn
cap unicorn:reload # Reload Unicorn
cap unicorn:remove_worker # Remove amount of workers
cap unicorn:restart # Restart Unicorn
cap unicorn:show_vars # Debug Unicorn variables
cap unicorn:shutdown # Immediately shutdown Unicorn
cap unicorn:start # Start Unicorn master process
cap unicorn:stop # Stop Unicorn
我：
app_name agrimm$ cap -vT unicorn
cap unicorn:graceful_stop # Unicorn graceful shutdown
cap unicorn:reload # Reload Unicorn
cap unicorn:start # Start Unicorn
cap unicorn:stop # Stop Unicorn
Extended help may be available for these tasks.
Type `cap -e taskname' to view it.
config/deploy.rb有require 'capistrano-unicorn'
我的怀疑是我没有从capistrano独角兽那里得到任务，但是出了什么问题？我该如何诊断问题？