Gradle error when building Flutter apk after adding firebase - firebase

Question

I want to implement Firebase Cloud Messaging into my Flutter application and i started to implement the Android part. I added the dependencies just like in the Firebase documentation, but now I'm getting gradle error when building my app:
The library com.google.firebase:firebase-iid is being requested by various other libraries at [[16.0.0,16.0.0]], but resolves to 15.1.0. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.
I'm not experienced at all with gradle, so I would appreciate some help^^
Here is 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.")
}
apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
android {
compileSdkVersion 27
lintOptions {
disable 'InvalidPackage'
}
defaultConfig {
// TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
applicationId "com.leodr.pguapp"
minSdkVersion 16
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
// TODO: Add your own signing config for the release build.
// Signing with the debug keys for now, so `flutter run --release` works.
signingConfig signingConfigs.debug
}
}
}
flutter {
source '../..'
}
dependencies {
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
implementation 'com.google.firebase:firebase-messaging:17.0.0'
}
apply plugin: 'com.google.gms.google-services'
And here is the project build.gradle(if needed):
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.1'
classpath 'com.google.gms:google-services:4.0.0'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
rootProject.buildDir = '../build'
subprojects {
project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
delete rootProject.buildDir
}

Answer 1

Downgrade the gms version on your build.gradle to
classpath 'com.google.gms:google-services:3.2.1'

Answer 2

write this at the bottom of app.gradle com.google.gms.googleservices.GoogleServicesPlugin.config.disableVersionCheck = true

Answer 3

hello I had the same problem but I fixed it by adding in buil.gradle, I hope and solve it
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
classpath 'com.google.gms:google-services:4.0.1'
classpath 'com.android.tools.build:gradle:3.2.1'
}

Answer 4

I think, when you don't have latest version of GRADLE/SDK/ANDROID STUDIO and you use the latest firebase supports version then this type of error may be generate.
So for the solution you have to decrease the gms version to run with your SDK compatible versoin.