Flutter app is not opening after firebase install - firebase

Question

I have installed a firebase plugin in my app and copy the google-service.json file but when I run the app its not opening
I only have a single plugin which is cloud_firestore: ^0.13.7
And my app level build.gradle file is
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: 'com.google.gms.google-services'
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 "com.rotaryadyar"
minSdkVersion 16
targetSdkVersion 28
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 'com.google.firebase:firebase-analytics:17.2.2'
implementation 'com.android.support:multidex:1.0.3'
}
After installing firebase and google file its showing some error then I add this multidexEnabled then error is not showing but after app building its not opening

Answer 1

Have you tried invalidating caches and restarting android studio I had that issue and after that my app was running or reduce to version 0.13.6

Answer 2

It could be that the integration is not completed.
Modify the android/build.gradle file and the android/app/build.gradle file to add the Google services plugin as described by the Firebase assistant. Ensure that your android/build.gradle file contains the maven.google.com as described here.
I personally recommend that you follow integration steps 1-3 of the firebase_messaging package, which are similar:
Using the Firebase Console add an Android app to your project: Follow the assistant, download the generated google-services.json file and place it inside android/app.
Add the classpath to the [project]/android/build.gradle file.
dependencies {
// Example existing classpath
classpath 'com.android.tools.build:gradle:3.5.3'
// Add the google services classpath
classpath 'com.google.gms:google-services:4.3.2'
}
Add the apply plugin to the [project]/android/app/build.gradle file.
// ADD THIS AT THE BOTTOM
apply plugin: 'com.google.gms.google-services'
PLEASE NOTE: The integration explicitly says to put apply plugin: 'com.google.gms.google-services' at the end of the file. But you have it in the middle of the file. Maybe this is your mistake.