Firebase Database connection was forcefully killed by the server: Different region #flutter

Issue

W/PersistentConnection( 4812): pc_0 - Firebase Database connection was forcefully killed by the server. Will not attempt reconnect. Reason: Database lives in a different region. Please change your database URL to https://multiapp-f0e1e-default-rtdb.europe-west1.firebasedatabase.app

Solution

This happens because, when you created your project at that time the Realtime Database was not enabled, that's why the google-services.json file don't contain the url to our Realtime Database.

I was also faced with a same problem, here's what I did.

We can also download an updated google-services.json file. But I manually added the url.

from this:

{
  "project_info": {
    "project_number": "xxx4071207xxx",
    "project_id": "xxxantonixxx",
    "storage_bucket": "xxxantonixxx.appspot.com"
  },

to this:

{
  "project_info": {
    "project_number": "xxx4071207xxx",
    "firebase_url": " https://multiapp-f0e1e-default-rtdb.europe-west1.firebasedatabase.app",
    "project_id": "xxxantonixxx",
    "storage_bucket": "xxxantonixxx.appspot.com"
  },

You'll get your database Url from here:

But wait... it still might not work.

If you make changes to the google-services.json file. And recompile the app from start, still the changes DONOT take place immediately.

In my case, even if I deleted the google-services.json file and recompile the app again, it was working similar to before deleting.

Solution:##

So, in that case, we'll have to delete the build and .dart_tool folder in our project folder, and then recompile the app again from start.

I came to know about this after I wasted my 2 whole days, working in some other direction. That's why I had to share it, so that it doesn't happen to anybody else.

Answered By - Madhav