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database: Port 9000 is not open on localhost, could not start Database Emulator.

See original GitHub issue

After upgrading right now to firebase-tools 8.7.0 I get the error above when running firebase emulators:start --inspect-functions.

This is on Windows 10.

Issue Analytics

State:
Created 3 years ago
Comments:6 (2 by maintainers)

Top GitHub Comments

1reaction

johnberang12commented, Aug 20, 2022

just type npx kill-port 9000 in the terminal then start the emulator again and it works

0reactions

reizkiancommented, Dec 10, 2021

For me, the command $firebase emulators:start would show Port 9000 is not open on 127.0.0.1, could not start Database Emulator because I have forced the Emulator Suite to exit before waiting for subprocess to finish.

The terminal show the processes that may still be running on your machine

Emulator	Host : Port	PID
Database Emulator	127.0.0.1:9000	373

so executing $kill 373 would stop the process, then run the $firebase emulators:start again

PS: I am using WSL2 Ubuntu 20.04.3 LTS

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