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How do I fix 'EADDRINUSE: address already in use' when starting my Node.js server?

beginner · 9 views · asked 3 days, 11 hours ago by Tai
0

Context

Node.js/Express app started with npm run dev on port 3000. I previously stopped the server with Ctrl+C (or closed the terminal), then tried to start it again. On Windows 11, but I'd also like to know the macOS/Linux equivalent.

Expected

Running npm run dev should start the server and print 'Listening on port 3000'.

What Happened

The process crashes immediately with Error: listen EADDRINUSE: address already in use :::3000.

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0 Answers