push-notifications registration crashes the app on Capacitor 4

[morsagmon]

I have an app that worked great on Capacitor 3 with Angular 13 and Ionic 6.
After an attempt to upgrade to capacitor 4 got me into a big mess, I created a fresh project with Angular 14, Ionic 6 and Capacitor 4.0.1.

I installed all plugins to the latest, one by one.

I took the same source code (from the version 3 project) and copied it into the new project, including taking the google-services.json file that connects to my FireBase project.

I adjusted in all places:

1. In file \android\app\src\main\AndroidManifest.xml:
   package="com.skillblaster.simplify.dev"
2. In file \android\app\build.gradle:
   applicationId "com.skillblaster.simplify.dev"
3. In file \android\app\google-services.json:
   "package_name": "com.skillblaster.simplify.dev"

My app is crashing (closing) on Native android devices, when the PushNotifications.register(); is called.

Error captured in the console log:
Registration Error: {"error":"java.util.concurrent.ExecutionException: java.io.IOException: FIS_AUTH_ERROR"}

import {ActionPerformed, PushNotifications, PushNotificationSchema, Token} from '@capacitor/push-notifications';
import {  Capacitor } from '@capacitor/core';

initPush() {
    if (Capacitor.getPlatform() !== 'web') {
      this.registerPush()
    } else {
      console.log('Web platform detected');
    }
  }
 
  private registerPush() {    
    PushNotifications.requestPermissions().then((permission) => {
      if (permission.receive === 'granted') {
        console.log('FB Permission granted');
        PushNotifications.register(); //FAILS AFTER UPGRADE to CAPACITOR 4 !!!!!!!!!!!!!!!!!!!!!!!!!!!!
      } else {
        console.log('FB NO permissions granted');
      }
    });
 
    PushNotifications.addListener(
      'registration',
      (token: Token) => {    
        if ((token)&&(!this.tokenProcessed)) {
          this.tokenProcessed = true;
          console.log('My token: ' + JSON.stringify(token));
          set('device-token', token.value);
        }         
    });

My package.json

{
    "browser":{
        "fs":false,
        "path":false,
        "os":false
        },
    "name":"simplify-mvp",
    "version":"0.0.1",
    "author":"Ionic Framework",
    "homepage":"https://ionicframework.com/",
    "scripts":{
        "ng":"ng",
        "start":"ng serve",
        "build":"ng build",
        "test":"ng test",
        "lint":"ng lint",
        "e2e":"ng e2e"},
        "private":true,
        "dependencies":{
            "@angular/common":"^14.0.0",
            "@angular/core":"^14.0.0",
            "@angular/fire":"^7.4.1",
            "@angular/forms":"^14.0.0",
            "@angular/platform-browser":"^14.0.0",
            "@angular/platform-browser-dynamic":"^14.0.0",
            "@angular/router":"^14.0.0",
            "@awesome-cordova-plugins/android-permissions":"^5.44.0",
            "@awesome-cordova-plugins/core":"5.44.0",
            "@awesome-cordova-plugins/device":"^5.44.0",
            "@awesome-cordova-plugins/native-audio":"^5.44.0",
            "@awesome-cordova-plugins/sms":"^5.44.0",
            "@aws-sdk/client-s3":"^3.145.0",
            "@capacitor-community/camera-preview":"^3.1.1",
            "@capacitor-community/contacts":"^2.0.0-0",
            "@capacitor/android":"4.0.1",
            "@capacitor/app":"4.0.1",
            "@capacitor/camera":"^4.0.1",
            "@capacitor/core":"4.0.1",
            "@capacitor/device":"^4.0.1",
            "@capacitor/haptics":"4.0.1",
            "@capacitor/ios":"4.0.1",
            "@capacitor/keyboard":"4.0.1",
            "@capacitor/network":"^4.0.1",
            "@capacitor/preferences":"^4.0.1",
            "@capacitor/push-notifications":"^4.0.1",
            "@capacitor/status-bar":"4.0.1",
            "@ionic/angular":"^6.1.9",
            "buffer":"^6.0.3",
            "cordova-plugin-android-permissions":"^1.1.3",
            "cordova-plugin-device":"^2.1.0",
            "cordova-plugin-nativeaudio":"^3.0.9",
            "cordova-sms-plugin":"^1.0.2",
            "crypto-browserify":"^3.12.0",
            "firebase":"^9.9.2",
            "fs":"^0.0.1-security",
            "google-libphonenumber":"^3.2.30",
            "mini-css-extract-plugin":"^2.6.1",
            "ng2-search-filter":"^0.5.1",
            "node-polyfill-webpack-plugin":"^2.0.1",
            "os-browserify":"^0.3.0",
            "path":"^0.12.7",
            "raw-loader":"^4.0.2",
            "rxjs":"~6.6.0",
            "stream-browserify":"^3.0.0",
            "stream-http":"^3.2.0",
            "tslib":"^2.2.0",
            "url":"^0.11.0",
            "util":"^0.12.4",
            "uuid":"^8.3.2",
            "zone.js":"~0.11.4"
        },
        "devDependencies":{
            "@angular-devkit/build-angular":"^14.0.0",
            "@angular-eslint/builder":"~13.0.1",
            "@angular-eslint/eslint-plugin":"~13.0.1",
            "@angular-eslint/eslint-plugin-template":"~13.0.1",
            "@angular-eslint/template-parser":"~13.0.1",
            "@angular/cli":"^14.0.0",
            "@angular/compiler":"^14.0.0",
            "@angular/compiler-cli":"^14.0.0",
            "@angular/language-service":"^14.0.0",
            "@capacitor/cli":"4.0.1",
            "@ionic/angular-toolkit":"^6.0.0",
            "@types/jasmine":"~3.6.0",
            "@types/jasminewd2":"~2.0.3",
            "@types/node":"^12.20.55",
            "@typescript-eslint/eslint-plugin":"5.3.0",
            "@typescript-eslint/parser":"5.3.0",
            "eslint":"^7.6.0",
            "eslint-plugin-import":"2.22.1",
            "eslint-plugin-jsdoc":"30.7.6",
            "eslint-plugin-prefer-arrow":"1.2.2",
            "jasmine-core":"~3.8.0",
            "jasmine-spec-reporter":"~5.0.0",
            "karma":"~6.3.2",
            "karma-chrome-launcher":"~3.1.0",
            "karma-coverage":"~2.0.3",
            "karma-coverage-istanbul-reporter":"~3.0.2",
            "karma-jasmine":"~4.0.0",
            "karma-jasmine-html-reporter":"^1.5.0",
            "protractor":"~7.0.0",
            "ts-node":"~8.3.0",
            "typescript":"~4.7.3",
            "webpack":"^5.74.0"
        },
        "description":"An Ionic project"}

Any pointers on what I may be missing?

[morsagmon]

After having tried many suggestions found on git and stackOverflow, the only way I could fix this was to create a new Firebase project.
A 3 minutes new Firebase project process resolved everything eventually.