Issue with the .rb

[colido]

/usr/lib/nagios/plugins# ruby -d check_resque2.rb
Exception LoadError' at <internal:lib/rubygems/custom_require>:29 - no such file to load -- rubygems/defaults/operating_system ExceptionLoadError' at internal:lib/rubygems/custom_require:37 - no such file to load -- rubygems/defaults/operating_system
Exception LoadError' at <internal:lib/rubygems/custom_require>:29 - no such file to load -- rubygems/defaults/ruby ExceptionLoadError' at internal:lib/rubygems/custom_require:37 - no such file to load -- rubygems/defaults/ruby
Exception LoadError' at <internal:lib/rubygems/custom_require>:29 - no such file to load -- resque /usr/local/rvm/gems/ruby-1.9.2-p180/gems/redis-namespace-1.0.3/lib/redis/namespace.rb:244: warning: ambiguous first argument; put parentheses or even spaces ExceptionLoadError' at internal:lib/rubygems/custom_require:29 - no such file to load -- system_timer
Exception LoadError' at <internal:lib/rubygems/custom_require>:37 - no such file to load -- system_timer ExceptionLoadError' at internal:lib/rubygems/custom_require:29 - no such file to load -- yajl
Usage: check_nrpe [options]
-h, --host redishost The hostname of the redis server
-q, --queues low,medium,high The queues to check (comma separated)
-w, --warning percentage Warning threshold
-c, --critical critical Critical threshold