Can't get mongrel to run on new installation

Just moved my homegrown GTD-app from one server to another.

I'm not completely familiar with the gem system yet but I noticed that
"gem install rails -y" for instance didn't pull in the mongrel gem. I
had to add quite a few gems manually before I had anything working at
all. Now I'm able to use the app starting it with "./script/server
webrick" and it works. When I start it with "./script/server" it comes
up but any requests generate the following error:

=> Booting Mongrel (use 'script/server webrick' to force WEBrick)
=> Rails application starting on http://0.0.0.0:3030
=> Call with -d to detach
=> Ctrl-C to shutdown server
Running Mongrel server in production mode at 0.0.0.0:3030
Server ready.
calling Dispatcher.dispatch uninitialized constant
RailsHandler::Dispatcher
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:478:in `const_missing'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/bin/mongrel_rails:75:in
`process'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/bin/mongrel_rails:73:in
`synchronize'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/bin/mongrel_rails:73:in
`process'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:371:in
`process_client'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:332:in
`initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:331:in
`timeout'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:331:in
`initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:328:in
`initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:328:in `new'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:328:in
`initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:328:in
`times'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel.rb:328:in
`initialize'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/bin/mongrel_rails:166:in
`new'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/bin/mongrel_rails:166:in
`start_mongrel'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/bin/mongrel_rails:181:in
`run'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/lib/mongrel/command.rb:
183:in `run'
/usr/lib/ruby/gems/1.8/gems/mongrel-0.3.3/bin/mongrel_rails:224
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:489:in `load'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:489:in `load'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:489:in `new_constants_in'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:489:in `load'
/usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/commands/servers/
mongrel.rb:60
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in `require'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in `new_constants_in'
/usr/lib/ruby/gems/1.8/gems/activesupport-1.4.0/lib/active_support/
dependencies.rb:496:in `require'
/usr/lib/ruby/gems/1.8/gems/rails-1.2.1/lib/commands/server.rb:39
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
./script/server:3

Could it be that I'm missing another gem? And if so, which one?

alex

Please check whether you stop your first WEBrick server.
This error also come when 1 application is running on the particular port and again if you want to run another application the same port.

Jeniffer F.
http://firstruby.wordpress.com

Tried a couple of other ports. Same thing.

alex