Oops! Google Chrome could not connect to localhost:3000

I am a begginer in ROR and using this tutorial:http://ruby.railstutorial.org/chapters/a-demo-app#sec-deploying_the_demo_app
to get a head start I got every thing working fine(installation …) but I went to chapter 2 for the demo appliaction
I can’t get see the output on my local server for


instead I got this google chrom message

Oops! Google Chrome could not connect to localhost:3000

any help please?

it seems a trivial issue but it took a toll on me since I am just a new ROR programmer

What do you see in the terminal window when you start the server?


Did you successfully done with database migration ?


Looks like the server didn’t start. It should happen on all browsers not only on chrome.
Follow the section 1.2.5 of same tutorial and check whether the server starts it’s execution without throwing any error. You should do this:-

$ rails server
=> Booting WEBrick
=> Rails application starting on
=> Call with -d to detach
=> Ctrl-C to shutdown server