/usr/local/lib/ruby/gems/1.8/gems/ruby-debug-0.9.3/cli/ruby-debug/interface.rb:24:in `join': can't convert nil into String (TypeError)
from /usr/local/lib/ruby/gems/1.8/gems/ruby-debug-0.9.3/cli/ruby-debug/interface.rb:24
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:495:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:342:in `new_constants_in'
from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.4.2/lib/active_support/dependencies.rb:495:in `require'
from /usr/local/lib/ruby/gems/1.8/gems/ruby-debug-0.9.3/cli/ruby-debug/processor.rb:1
from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `gem_original_require'
... 16 levels...
from /usr/local/lib/ruby/gems/1.8/gems/rails-1.2.3/lib/initializer.rb:43:in `run'
from /www/data/xxx.com/site/public/../config/environment.rb:13
from /www/data/xxx.com/site/public/dispatch.cgi:3:in `require'
from /www/data/xxx.com/site/public/dispatch.cgi:3
[Fri Jul 27 16:01:41 2007] [error] [client xxx.xxx.xxx.xxx] Premature end of script headers: /www/data/xxx.com/site/public/dispatch.cgi