Missing gems causing Mongrel/Webrick to fail on bootup

Hey Guys,

I recently moved my RoR project to another puter and when I attempted to
start up Mongrel (or Webrick) I got the following message on the Windoze
console…

After about an hour of scratching my head I remembered that my project
needed the sparklines gem. A quick question for the gurus… aside from
relying on my faulty memory, where can I look for diagnostic messages in
the future? The log/server.log file was empty…

Sonny.

=================================
=> Booting Mongrel (use ‘script/server webrick’ to force WEBrick)
=> Rails application starting on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
** Starting Mongrel listening at 0.0.0.0:3000
** Starting Rails with development environment…

Logfile created on Sun Oct 21 17:28:06 -0700 2007 by logger.rb/1.5.2.9

Exiting
c:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/servers/mongrel.rb:15:
warning: already initialized constant OPT
IONS
c:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/servers/mongrel.rb:18:
undefined method options' for []:Array ( NoMethodError) from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:33:in gem_original_require’
from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:33:in
require' from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:495:in require’
from
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:342:in
new_constants _in' from c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:495:in require’
from
c:/ruby/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/commands/server.rb:39
from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in require’
from script/server:3