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

You can delete the server.pid file.

rm /your_project_path/tmp/pids/server.pid

---

Else:

try in OSX:

sudo lsof -iTCP -sTCP:LISTEN -P | grep :3000

or in linux:

ps -aef | grep rails

or

lsof -wni tcp:3000

kill the process using

kill -9 PID (eg,2786)