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Editorial Team
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Asked: 2026-05-23T05:59:56+00:00

I’m trying to create a very simple Hello, world program in RoR, but when

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I’m trying to create a very simple Hello, world program in RoR, but when I go to view the url http://localhost:3000/say/hello I’m getting the error message No route matches: "say/hello"

When I started the rails server I got this message with warnings scattered throughout:

=> Booting WEBrick
=> Rails 3.0.9 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2011-06-20 20:02:44] INFO  WEBrick 1.3.1
[2011-06-20 20:02:44] INFO  ruby 1.9.2 (2011-02-18) [i686-linux]
[2011-06-20 20:02:44] WARN  TCPServer Error: Address already in use - bind(2)
Exiting
/home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:73:in `initialize': Address already in use - bind(2) (Errno::EADDRINUSE)
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:73:in `new'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:73:in `block in create_listeners'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:70:in `each'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:70:in `create_listeners'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/server.rb:74:in `listen'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/server.rb:62:in `initialize'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/httpserver.rb:24:in `initialize'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.3/lib/rack/handler/webrick.rb:10:in `new'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.3/lib/rack/handler/webrick.rb:10:in `run'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.3/lib/rack/server.rb:217:in `start'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.9/lib/rails/commands/server.rb:65:in `start'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.9/lib/rails/commands.rb:30:in `block in <top (required)>'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.9/lib/rails/commands.rb:27:in `tap'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.9/lib/rails/commands.rb:27:in `<top (required)>'
  from script/rails:6:in `require'
  from script/rails:6:in `<main>'

I started with: rails generate controller Say hello goodbye
which lists route get “say/hello”

Also: I’m having this problem which is probably related. When I go to write some basic html in one of the files that is clearly listed as existing I get this:

I write this:

~/work/demo$ /app/views/say/hello.html.erb

Get this error message in return:

bash: /app/views/say/hello.html.erb: No such file or directory

What’s going on here? I’m getting these instructions straight from Agile Development with Rails and it’s so simple. I don’t understand what’s going on.

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1 Answer

  1. Editorial Team
    [2011-06-20 20:02:44] WARN  TCPServer Error: Address already in use - bind(2)

    You already have a server (or something) running on the port your server is supposed to be running on. As such, the code you think is running (which you say has the route in question) actually isn’t running. Once you shut down the other process (probably a previously running rails server?), you can start the correct one and make sure it actually has that route.

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