Rails Newbie Question

Hi,

I am new to ROR.
I have cloned a project from Github.
I opened the terminal and exectued the following command

rails server

Server is not starting up.

Following message comes up

Usage:
  rails new APP_PATH [options]
.
.
.
.
.

See the README in the newly created application to get going.

What is the issue ? Why rails server Webrick is not working

Did you cd into the top level folder of the project before trying to
start the server (you should be in the folder that contains app,
config and so on).

Colin