[rails-3.0beta] Problems with routing

Hi,
I’m in the progress of converting an existing Rails 2.3.5 to Rail 3.0-
beta and experiencing some problems.

By now I can start the console through “rails console”, database
access etc. works. Alas invoking “rails server” only yields a Routing
Error “no route matches …” for each configured resource.

Funny thing is, that “rake routes” generates a listing of all
configured routes, so this should be some other problem.

The backtrace on the console is:
Started GET “/” for xxx.xxx.xxx.xxx at 2010-02-20 16:52:32
SQL (0.5ms) SET client_min_messages TO ‘panic’
SQL (0.4ms) SET client_min_messages TO ‘notice’
SQL (0.5ms) SET time zone ‘UTC’

ActionController::RoutingError (No route matches “/”):
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/
action_dispatch/routing/route_set.rb:8
rack-mount (0.4.0) lib/rack/mount/recognition/route_set.rb:70:in
call' rack-mount (0.4.0) lib/rack/mount/recognition/route_set.rb:70:incall’
rack-mount (0.4.0) lib/rack/mount/recognition/code_generation.rb:
91:in recognize' rack-mount (0.4.0) lib/rack/mount/recognition/code_generation.rb: 73:inoptimized_each’
rack-mount (0.4.0) lib/rack/mount/recognition/code_generation.rb:
90:in recognize' rack-mount (0.4.0) lib/rack/mount/recognition/route_set.rb:65:incall’
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/
action_dispatch/routing/route_set.rb:419:in call' /usr/lib/ruby/gems/1.8/gems/activerecord-3.0.0.beta/lib/ active_record/query_cache.rb:29:incall’
/usr/lib/ruby/gems/1.8/gems/activerecord-3.0.0.beta/lib/
active_record/connection_adapters/abstract/query_cache.rb:34:in
cache' /usr/lib/ruby/gems/1.8/gems/activerecord-3.0.0.beta/lib/ active_record/query_cache.rb:9:incache’
/usr/lib/ruby/gems/1.8/gems/activerecord-3.0.0.beta/lib/
active_record/query_cache.rb:28:in call' /usr/lib/ruby/gems/1.8/gems/activerecord-3.0.0.beta/lib/ active_record/connection_adapters/abstract/connection_pool.rb:365:incall’
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/
action_dispatch/middleware/head.rb:14:in call' rack (1.1.0) lib/rack/methodoverride.rb:24:incall’
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/
action_dispatch/middleware/params_parser.rb:20:in call' /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/ action_dispatch/middleware/flash.rb:167:incall’
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/
action_dispatch/middleware/session/cookie_store.rb:107:in call' /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/ action_dispatch/middleware/cookies.rb:205:incall’
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/
action_dispatch/middleware/callbacks.rb:46:in call' /usr/lib/ruby/gems/1.8/gems/activesupport-3.0.0.beta/lib/ active_support/callbacks.rb:409:in_run_call_callbacks’
/usr/lib/ruby/gems/1.8/gems/activesupport-3.0.0.beta/lib/
active_support/callbacks.rb:88:in send' /usr/lib/ruby/gems/1.8/gems/activesupport-3.0.0.beta/lib/ active_support/callbacks.rb:88:inrun_callbacks’
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/
action_dispatch/middleware/callbacks.rb:44:in call' /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/ action_dispatch/middleware/show_exceptions.rb:62:incall’
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/rack/
logger.rb:13:in call' rack (1.1.0) lib/rack/runtime.rb:17:incall’
rack (1.1.0) lib/rack/lock.rb:11:in call' rack (1.1.0) lib/rack/lock.rb:11:insynchronize’
rack (1.1.0) lib/rack/lock.rb:11:in call' /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/ action_dispatch/middleware/static.rb:30:incall’
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/
application.rb:95:in call' /usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/ application.rb:41:insend’
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/
application.rb:41:in method_missing' /usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/rack/ log_tailer.rb:15:incall’
rack (1.1.0) lib/rack/content_length.rb:13:in call' rack (1.1.0) lib/rack/handler/webrick.rb:48:inservice’
/usr/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /usr/lib/ruby/1.8/webrick/httpserver.rb:65:inrun’
/usr/lib/ruby/1.8/webrick/server.rb:173:in start_thread' /usr/lib/ruby/1.8/webrick/server.rb:162:instart’
/usr/lib/ruby/1.8/webrick/server.rb:162:in start_thread' /usr/lib/ruby/1.8/webrick/server.rb:95:instart’
/usr/lib/ruby/1.8/webrick/server.rb:92:in each' /usr/lib/ruby/1.8/webrick/server.rb:92:instart’
/usr/lib/ruby/1.8/webrick/server.rb:23:in start' /usr/lib/ruby/1.8/webrick/server.rb:82:instart’
rack (1.1.0) lib/rack/handler/webrick.rb:14:in run' rack (1.1.0) lib/rack/server.rb:155:instart’
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/commands/
server.rb:49:in start' rack (1.1.0) lib/rack/server.rb:83:instart’
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta/lib/rails/
commands.rb:39
script/rails:10:in `require’
script/rails:10

Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/
action_dispatch/middleware/templates/rescues/routing_error.erb within /
usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta/lib/action_dispatch/
middleware/templates/rescues/layout.erb (0.6ms)

Any ideas what the problem might be?

cheers, Andreas