In my Rails Project, I am trying to run two different servers at different port. But it fails by giving this error at console.
C:\\Rails>rails s
=> Boo
Step 1: remove .pid
C:/Rails/tmp/pids/server.pid.Exiting
# IN linux/unix shell
$ rm -rf
Sometime this doesn't solve the problem, then you have to kill the process running by localhost, for such cases, follow STEP 2
STEP 2: List the process for localhost and kill it
# For Linux/Unix shell
$ lsof -wni tcp:3000
# output
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
ruby 5946 rails 11u IPv4 79073 0t0 TCP *:3000 (LISTEN)
ruby 5946 rails 12u IPv4 103786 0t0 TCP 127.0.0.1:3000->127.0.0.1:53612 (ESTABLISHED)
# Kill the running process
$ kill -9 5946
run your server again
rails server