Error when starting firebase emulator with only funtions option - firebase

Question

When trying to use the cloud functions emulator, I get a message stating:
function ignored because the firestore emulator does not exist or is not running
I have tried mentioned here: (Firestore/Firebase Emulator Not Running).
My functions/package.json looks like this:
{
"name": "functions",
"description": "Cloud Functions for Firebase",
"scripts": {
"lint": "eslint .",
"serve": "firebase serve --only functions",
"shell": "firebase functions:shell",
"start": "npm run shell",
"deploy": "firebase deploy --only functions",
"logs": "firebase functions:log"
},
"engines": {
"node": "8"
},
"dependencies": {
"firebase-admin": "^8.0.0",
"firebase-functions": "^3.1.0"
},
"devDependencies": {
"eslint": "^5.12.0",
"eslint-plugin-promise": "^4.0.1",
"firebase-functions-test": "^0.1.6"
},
"private": true
}
Command I'm using to start the emulator:
firebase emulators:start --only functions
This is the output I'm getting:
i Starting emulators: ["functions"]
! Your requested "node" version "8" doesn't match your global version "10"
+ functions: Emulator started at http://localhost:5001
i functions: Watching "C:\Users\MyName\Documents\MyProject\functions" for Cloud Functions...
i functions[updateFunction]: function ignored because the firestore emulator does not exist or is not running.
+ All emulators started, it is now safe to connect.
I am doing a console.log in the function but I don't see it on the port (5001).
Any help would be appreciated.

Answer 1

If you want to trigger a Firestore function, you will need to make that change in the local Firestore emulator. Locally emulated functions don't respond to actual cloud-hosted databases. The emulation on all products must be local.

Answer 2

functions[updateFunction]: function ignored because the firestore emulator does not exist or is not running.
Maybe the 'updateFunction' is the handler function for watching a change of your firestore documents, isn't it?
So you might need to start firestore at the same time with functions.
Just execute without --only option with the firebase.json configurations
{
"hosting": {
"public": "public",
"ignore": ["firebase.json", "**/.*", "**/node_modules/**"],
},
"functions": {
"source": "functions"
},
"emulators": {
"functions": {
"port": 5001
},
"firestore": {
"port": 8080
},
"hosting": {
"port": 5000
},
"ui": {
"enabled": true,
"host": "localhost",
"port": 4000
}
}
}
And if you want to connect your server-side functions with your IDE for debugging, you need '--inspect-functions' option, or you just have to check logs in the emulator log page "http://localhost:4000/logs"
firebase emulators:start --inspect-functions