I configured my flutter project with the Firebase CLI,
I did it by following the necessary steps in flutter fire docs. I also did the manual installation for the emulator but my problem was not solved
  Flutterfire documents : https://firebase.flutter.dev/docs/overview

 My problem is this: 

  (V) Firebase plugins work when I compile it into Flutter WEB 

  (X) But it does not work in the emulator. 
 
   * I've done the SHA-KEY additions to the console firebase 

   * I've updated the google-services.json file.

   * I also updated two build gradle files

I get the following errors when starting the application
   >> Note: Some input files use or override a deprecated API.
   >> Note: Recompile with -Xlint:deprecation for details.
  i also run the following console codes for this error
   flutter pub upgrade
   flutter clean
   flutter run

Video Link

   sorry for the watermark in the video :)
   if you see my problem as a video I hope i can be fully understood

   issues screen record

main.dart file

import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'firebase_options.dart';

/*
...
*/

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  SystemChrome.setSystemUIOverlayStyle(const SystemUiOverlayStyle(
    statusBarColor: Colors.transparent, //Set status bar color
  ));
  await Firebase.initializeApp(
    options: DefaultFirebaseOptions.currentPlatform,
  );
  bool isIntroPass = await HelperFunctions.getAppIntroduction();
  runApp(KampApp(isPassIntro: isIntroPass));
}

class KampApp extends StatefulWidget {
  final bool isPassIntro;
  const KampApp({super.key, this.isPassIntro = true});

  @override
  State<KampApp> createState() => _KampAppState();
}

class _KampAppState extends State<KampApp> {
  bool isLogged = false;
  @override
  void initState() {
    super.initState();
    getUserLoggedStatus();
  }


  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: Constants.appTitle,
      themeMode: ThemeMode.system,
      theme: MyThemes.lightTheme(context),
      darkTheme: MyThemes.darkTheme(context),
      home: widget.isPassIntro
          ? isLogged
              ? const HomePage()
              : const LoginPage()
          : const IntroPage(),
      onGenerateRoute: RouteGenarator.routeGenarator,
    );
  }
}

android/build.gradle

buildscript {
    ext.kotlin_version = '1.6.10'
    repositories {
        google()
        mavenCentral()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:7.1.2'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath 'com.google.gms:google-services:4.3.13'//google services
    }
}

allprojects {
    repositories {
        google()
        mavenCentral()
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

android/app/build.gradle

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'com.google.gms.google-services'//google services
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
android {
    compileSdkVersion flutter.compileSdkVersion
    ndkVersion flutter.ndkVersion

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    kotlinOptions {
        jvmTarget = '1.8'
    }

    sourceSets {
        main.java.srcDirs  = 'src/main/kotlin'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.mypackagename"
        // You can update the following values to match your application needs.
        // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-build-configuration.
        minSdkVersion 19
        targetSdkVersion flutter.targetSdkVersion
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        multiDexEnabled true
    }

    buildTypes {
        release {
            // TODO: Add your own signing config for the release build.
            // Signing with the debug keys for now, so `flutter run --release` works.
            signingConfig signingConfigs.debug
            
        }
    }
}

flutter {
    source '../..'
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation platform('com.google.firebase:firebase-bom:30.4.1')//firebase bom
    implementation 'com.android.support:multidex:1.0.3'//mulitdex
}

CodePudding user response：

try to add firebase to your project with the instruction from firebase console

CodePudding user response：

these are the warning messages you can ignore them, have you addded the firebase initializer in the main.dart file?  

Note: Some input files use or override a deprecated API. Note: Recompile with -Xlint:deprecation for details.

Need to add this line in main.dart

await Firebase.initializeApp(   options: DefaultFirebaseOptions.currentPlatform, );