Address already in use – bind(2) for “127.0.0.1” port 3000 (Errno::EADDRINUSE) | Check what process is running in your localhost

I was trying to create a new rails app and got this error:

Address already in use – bind(2) for “127.0.0.1” port 3000 (Errno::EADDRINUSE)

To fix it I first check which process used my port 3000:

And I got this output:

So now I can stopped it using its pid:

I checked again if something was running in my port 3000 and I didn’t get any output so I run my rails s command and everything worked fine!

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