[all] Getting red deprecation error when running my app that uses firebase packages

[officer47p]

Hey Everybody,
I'm new to flutter and firebase, and recently I had a lot of problems and hardnesses for implementing firebase to a flutter app, but anyway, after creating my app and adding the google services file to my project and editing gradle files, when I added 3 packages from pub.dev(firebase_auth, firebase_core and cloud_firestore) and running the flutter packages get, and finally running my app, I got this red error in my console :

Note: C:\Users\Parsa\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\cloud_firestore-0.12.9+4\android\src\main\java\io\flutter\plugins\firebase\cloudfirestore\CloudFirestorePlugin.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. Note: C:\Users\Parsa\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\cloud_firestore-0.12.9+4\android\src\main\java\io\flutter\plugins\firebase\cloudfirestore\CloudFirestorePlugin.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details.

My app was built successfully but I am wondering if there is a problem with my configuration or it's just a simple deprecation error?

Any help and comment are welcome.
Thanks a lot.

I want to put my gradle files and my pubspec.yaml file here in case you want to take a look at it:
My project level gradle file

buildscript {
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
        classpath 'com.google.gms:google-services:4.0.1'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

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

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

My app level gradle file

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 from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"

android {
    compileSdkVersion 28

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "My application id :D"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        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 {
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test:runner:1.1.0-alpha4'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4'
    implementation 'androidx.multidex:multidex:2.0.0'
}
apply plugin: 'com.google.gms.google-services'

My pubspec.yaml file

name: flash_chat
description: A new Flutter application.

version: 1.0.0+1

environment:
  sdk: ">=2.0.0-dev.68.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  cupertino_icons: ^0.1.2
  animated_text_kit: ^1.3.1
  firebase_core: ^0.4.0+9
  cloud_firestore: ^0.12.9+4
  firebase_auth: ^0.14.0+5

dev_dependencies:
  flutter_test:
    sdk: flutter

flutter:
  uses-material-design: true

  assets:
  - images/

[LOG-TAG]

why all the modules converted into androidx :(

[iapicca]

Hi @officer47p
I see there's an open issue addressing the case you described.
Please follow up on that issue,
I'm closing the current one as duplicate.
If you disagree please write in the comments
and I will reopen it.
Thank you