ROR + A server is already running. Check …/tmp/pids/server.pid. Exiting

Question

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         


        

Answer 1

I find myself coming back to this webpage a lot to find the lsof -wni tcp:3000 command so I've found this method to be easier.

If you get this message:

A server is already running. Check /Users/username/project/tmp/pids/server.pid.
Exiting

And if you're running on a unix system (mac or linux) you can run these commands:

$ cat /Users/username/project/tmp/pids/server.pid

# output

71030

# Kill the process

$ kill -9 71030

Then run your server again!