DEV_LOG_1: React scripts something is already running on port 3000

Introduction

Hi guys! I'm a full stack developer and recently I decided to start logging errors, bugs and cool stuff I come across. Today I noticed an error I usually come across from time to time when working with React-scripts or NodeJS.
Something is already running on Port 3000
This is how I usually fix it 🧘🏾‍♂️

Step 1: Identify the culprit

Whenever you see this error, it simply means that there's an active process using this port. Usually for me, it's a previous node project that didn't close properly. To identify what it is just use this command.

For windows
netstat -ano | findstr :3000

For Linux (and Mac)
sudo lsof -i tcp:3000

This bring up the running process along with its PID (the number at the end or with PID above it)

Step 2: Kill the culprit

Next we have to end the running process.
For windows
tskill @yourPID@
If you're using git bash then replace tskill with taskkill

For Linux (and Mac...)
sudo kill -9 @yourPID@

@yourPID@ is the PID number you got from the previous command. Also, you should write it all yourself instead of copying and pasting because that usually leads to more errors

You're done! 🎉

And that's it folks! See you next time and have a Merry Christmas 💃🏾💃🏾💃🏾