CODEWITHSUNDEEP
ruby-on-rails-3
Travis
Travis

Reputation: 3188

Unable to start webbrick - TCPServer Error: Address already in use

I am receiving the following error:

$rails server --binding=127.0.0.1
=> Booting WEBrick
=> Rails 3.1.1 application starting in development on http://127.0.0.1:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2012-04-04 13:02:35] INFO  WEBrick 1.3.1
[2012-04-04 13:02:35] INFO  ruby 1.9.2 (2011-07-09) [x86_64-darwin10.8.0]
[2012-04-04 13:02:35] WARN  TCPServer Error: Address already in use - bind(2)
Exiting
/Users/TravisKs/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/utils.rb:73:in `initialize': Address already in use - bind(2) (Errno::EADDRINUSE)
from /Users/TravisKs/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/utils.rb:73:in `new'
from /Users/TravisKs/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/utils.rb:73:in `block in create_listeners'
from /Users/TravisKs/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/utils.rb:70:in `each'
from /Users/TravisKs/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/utils.rb:70:in `create_listeners'
from /Users/TravisKs/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/server.rb:74:in `listen'
from /Users/TravisKs/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/server.rb:62:in `initialize'
from /Users/TravisKs/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/webrick/httpserver.rb:24:in `initialize'
from /Users/TravisKs/.rvm/gems/ruby-1.9.2-p290@rvm-gemset-name/gems/rack-1.3.5/lib/rack/handler/webrick.rb:10:in `new' 
from /Users/TravisKs/.rvm/gems/ruby-1.9.2-p290@rvm-gemset-name/gems/rack-1.3.5/lib/rack/handler/webrick.rb:10:in `run' 
from /Users/TravisKs/.rvm/gems/ruby-1.9.2-p290@rvm-gemset-name/gems/rack-1.3.5/lib/rack/server.rb:265:in `start'
from /Users/TravisKs/.rvm/gems/ruby-1.9.2-p290@rvm-gemset-name/gems/railties-3.1.1/lib/rails/commands/server.rb:70:in `start'
from /Users/TravisKs/.rvm/gems/ruby-1.9.2-p290@rvm-gemset-name/gems/railties-3.1.1/lib/rails/commands.rb:54:in `block in <top (required)>'
from /Users/TravisKs/.rvm/gems/ruby-1.9.2-p290@rvm-gemset-name/gems/railties-3.1.1/lib/rails/commands.rb:49:in `tap' 
from /Users/TravisKs/.rvm/gems/ruby-1.9.2-p290@rvm-gemset-name/gems/railties-3.1.1/lib/rails/commands.rb:49:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

After restarting my machine I still have this problem. I have reviewed other SO posts on the TCPServer error with Rails.

ps -eo pid,ppid,user,args,stat

Returns no results for rails

ps aux

Does not return any Zombie Processes (Z in the stat column) or Rails servers.

This is odd to me since everything was working fine. I switched a gemset, reinstalled Rails 3.1.1, and now I am unable to run it.

Upvotes: 4

Views: 10006

Answers (2)

Mawaheb
Mawaheb

Reputation: 832

Well, i know it's to late to answer, but this very same day i had same problem.

All i did is, Restart my machine. seems like other application was using the same port !..

so, by simply restarting, problem solved!

Upvotes: 1

FreeCandies
FreeCandies

Reputation: 1113

try running lsof | grep 3000 and then kill -9 <number of process> if it doesn't help, try running the rails server with -p 3001 option to change the port

Upvotes: 8

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