Rails 3 web server quits with error message on booting

rubyonrails-talk
1

Hi, have tried to boot the web server but keep on getting this error message. Can you help me figure out what it means? TIA

rails server => Booting WEBrick => Rails 3.0.0 application starting in development on http://0.0.0.0:3000 => Call with -d to detach => Ctrl-C to shutdown server Exiting /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/activesupport-3.0.0/lib/ active_support/dependencies.rb:235:in `load': /Users/pdenlinger/Sites/ rails_projects/demo_app/config/routes.rb:7: syntax error, unexpected '.' (SyntaxError) /Users/pdenlinger/Sites/rails_projects/demo_app/config/routes.rb:13: syntax error, unexpected keyword_do_block, expecting keyword_end /Users/pdenlinger/Sites/rails_projects/demo_app/config/routes.rb:17: syntax error, unexpected '.'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/ activesupport-3.0.0/lib/active_support/dependencies.rb:235:in `block in load'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/ activesupport-3.0.0/lib/active_support/dependencies.rb:225:in `block in load_dependency'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/ activesupport-3.0.0/lib/active_support/dependencies.rb:591:in `new_constants_in'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/ activesupport-3.0.0/lib/active_support/dependencies.rb:225:in `load_dependency'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/ activesupport-3.0.0/lib/active_support/dependencies.rb:235:in `load'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/application.rb:127:in `block in reload_routes!'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/application.rb:127:in `each'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/application.rb:127:in `reload_routes!'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/application.rb:120:in `block in routes_reloader'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/ activesupport-3.0.0/lib/active_support/file_update_checker.rb:32:in `call'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/ activesupport-3.0.0/lib/active_support/file_update_checker.rb:32:in `execute_if_updated'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/ lib/action_dispatch/railtie.rb:14:in `block (2 levels) in <class:Railtie>'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/ activesupport-3.0.0/lib/active_support/callbacks.rb:419:in `_run_prepare_callbacks'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/ lib/action_dispatch/middleware/callbacks.rb:40:in `initialize'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/ lib/action_dispatch/middleware/stack.rb:33:in `new'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/ lib/action_dispatch/middleware/stack.rb:33:in `build'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/ lib/action_dispatch/middleware/stack.rb:79:in `block in build'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/ lib/action_dispatch/middleware/stack.rb:79:in `each'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/ lib/action_dispatch/middleware/stack.rb:79:in `inject'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/actionpack-3.0.0/ lib/action_dispatch/middleware/stack.rb:79:in `build'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/application.rb:162:in `app'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/application/finisher.rb:35:in `block in <module:Finisher>'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/initializable.rb:25:in `instance_exec'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/initializable.rb:25:in `run'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/initializable.rb:50:in `block in run_initializers'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/initializable.rb:49:in `each'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/initializable.rb:49:in `run_initializers'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/application.rb:134:in `initialize!'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/application.rb:77:in `method_missing'   from /Users/pdenlinger/Sites/rails_projects/demo_app/config/ environment.rb:5:in `<top (required)>'   from /Users/pdenlinger/Sites/rails_projects/demo_app/config.ru:3:in `require'   from /Users/pdenlinger/Sites/rails_projects/demo_app/config.ru:3:in `block in <main>'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/rack-1.2.1/lib/ rack/builder.rb:46:in `instance_eval'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/rack-1.2.1/lib/ rack/builder.rb:46:in `initialize'   from /Users/pdenlinger/Sites/rails_projects/demo_app/config.ru:1:in `new'   from /Users/pdenlinger/Sites/rails_projects/demo_app/config.ru:1:in `<main>'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/rack-1.2.1/lib/ rack/builder.rb:35:in `eval'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/rack-1.2.1/lib/ rack/builder.rb:35:in `parse_file'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/rack-1.2.1/lib/ rack/server.rb:162:in `app'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/rack-1.2.1/lib/ rack/server.rb:248:in `wrapped_app'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/rack-1.2.1/lib/ rack/server.rb:213:in `start'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/commands/server.rb:65:in `start'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/commands.rb:30:in `block in <top (required)>'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/commands.rb:27:in `tap'   from /Users/pdenlinger/.rvm/gems/ruby-1.9.2-p0/gems/railties-3.0.0/ lib/rails/commands.rb:27:in `<top (required)>'   from script/rails:6:in `require'   from script/rails:6:in `<main>'

2

Issue with the rutes.rb fiule unexpected ‘.’ (SyntaxError)

check the lines of 7 You can fix the issue.

3

There is only a "." on line 7. How would that trigger a syntax error?

Thanks and regards, Paul

4

Because a '.' on a line on its own is not a valid Ruby expression...

Dan

5

Daniel,

In that case, isn't the code on Listing 2.2, 2.3, 2.4 wrong here at http://railstutorial.org/chapters/a-demo-app#top

Shouldn't that have the normal methods in there instead?

Thanks, Paul

6

Heheh! No, there's nothing wrong there - the '.' characters are simply placeholders for your own code. As your app grows, you'll add more routes to routes.rb, and they will go where the dots are in the example listing. The same applies with the other listings - you need to fill out the method bodies with your own code, the exact nature of which will, of course, depend upon what your app needs to do.

Try removing those pesky full stops and have another go.

Dan

7

Paul,

It looks like at some point when you started copy-pasting examples you got tired and stopped paying attention to explanations. Have a some rest, man.

Dots alone are not a valid Ruby expression for sure. It's all Ruby out there and has to comply.

- A

PGP.sig (495 Bytes)

8

OK, thanks for the explanation.

Paul