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Ruby

problem happened when I start to Ruby on rails with cloud9

I can't get the address after I enter this command "rails server -b SIP -p $PORT exiting" My terminal said as below

 $ rails server -b SIP -p $PORT                                                                                   
=> Booting WEBrick                                                                                                                         
=> Rails 3.2.13 application starting in development on http://SIP:8080                                                                     
=> Call with -d to detach                                                                                                                  
=> Ctrl-C to shutdown server                                                                                                               
[2013-05-04 23:21:32] INFO  WEBrick 1.3.1                                                                                                  
[2013-05-04 23:21:32] INFO  ruby 1.9.3 (2012-11-10) [x86_64-linux]                                                                         
Exiting                                                                                                                                    
/opt/rh/ruby193/root/usr/share/ruby/webrick/utils.rb:75:in `getaddrinfo': getaddrinfo: Name or service not known (SocketError)             
        from /opt/rh/ruby193/root/usr/share/ruby/webrick/utils.rb:75:in `create_listeners'                                                 
        from /opt/rh/ruby193/root/usr/share/ruby/webrick/server.rb:82:in `listen'                                                          
        from /opt/rh/ruby193/root/usr/share/ruby/webrick/server.rb:70:in `initialize'                                                      
        from /opt/rh/ruby193/root/usr/share/ruby/webrick/httpserver.rb:45:in `initialize'                                                  
        from /var/lib/stickshift/517f432650044679c700006c/app-root/data/lib/ruby/gems/gems/rack-1.4.5/lib/rack/handler/webrick.rb:1        
0:in `new'                                                                                                                                 
        from /var/lib/stickshift/517f432650044679c700006c/app-root/data/lib/ruby/gems/gems/rack-1.4.5/lib/rack/handler/webrick.rb:1        

What sholud I do to get the address? Please help me.

1 Answer

Jason Seifer
STAFF
Jason Seifer
Treehouse Guest Teacher

Try changing "SIP" to "$IP" and let us know if that fixes it.