javascript
Port already in use - address bind failed
Error.*EADDRINUSE.*address already in use.*:\d+
Fixes
- 1.Kill the existing process: lsof -i :PORT then kill -9 PID (or netstat -tlnp on Linux)
- 2.Use a different port or implement automatic port finding with portfinder package
- 3.Enable SO_REUSEADDR: server.listen(port, { exclusive: false }) for cluster mode
nodejsnetworkEADDRINUSE
Related Errors
javascript3 fixes
Cannot read property of undefined
Cannot read propert(y|ies) of undefined
- •Add optional chaining (?.)
- •Check if object exists before accessing
javascript3 fixes
Cannot read property of null
Cannot read propert(y|ies) of null
- •Add null check before access
- •Use optional chaining (?.)
javascript3 fixes
TypeError: X is not a function
is not a function
- •Check spelling of method name
- •Verify import is correct