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

Run given below command on terminal ( for linux only )

ps aux | grep rails

and then

kill -9 [pid]

Another way

lsof -wni tcp:3000

and then

kill -9 [PID]