A server is already running. Check …/tmp/pids/server.pid. Exiting - rails

Question

..$ rails s
=> Booting WEBrick
=> Rails 4.0.4 application starting in development on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
=>         


        

Answer 1

It happens sometimes because you turn off the server by force, for example turning off the OS/machine manually so that the server does not have enough time to log to server.pid.

One easy way is to manually go to tmp/pids/ (the directory that is shown in your console.) and remove server.pid file. Then, when you start the server again, rails server or rails s ,it creates a new server.pid and you can continue development.