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 this command -

lsof -wni tcp:3000

then you will get the following table -

COMMAND  PID  USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
ruby    2552 shyam   17u  IPv4  44599      0t0  TCP 127.0.0.1:3000 (LISTEN)
ruby    2552 shyam   18u  IPv6  44600      0t0  TCP [::1]:3000 (LISTEN)

Run this command and replace PID from the Above table

kill -9 PID

example:

kill -9 2552