Tips for resolving the NextJS port already in use issue

My ReactApp is up and running smoothly on port 3000.

However, when I decided to launch a new NextJS App for testing purposes, an error popped up:

Error: listen EADDRINUSE: address already in use 0.0.0.0:3000

This situation doesn't add up. In a normal ReactJS setup, it would prompt me to switch to another port if the current one is in use. When I confirm with Yes, ReactJS seamlessly switches ports and continues application execution. So why can't NextJS adopt a similar approach instead of halting immediately?

I shouldn't have to terminate my ReactApp on port 3000 just so the NextApp can function.

Is there a workaround for this issue?

Your assistance is greatly appreciated!

reactjsnext.js

Answer №1

To change the port your next server is running on, you can modify the settings in your package.json file.

 "scripts": { 
       "dev": "next -p 8080" 
},

8080 represents the new port number that you want to use for your server.

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