Flutter firebase_messaging android app crash on .getToken() call
Solution 1
For me, it worked by downgrading from
com.google.firebase:firebase-bom:28.0.1
to
com.google.firebase:firebase-bom:27.0.0
Hint: this is a temporary solution for those versions:
firebase_messaging: ^9.1.4
firebase_core: ^1.1.1
Solution 2
Solution
For some reason I had put the onBackgroundMessageHandler as a class method in my project. The problem were resolved by simply placing the method as a top-level function as it should be.
Before
class MyNotificationClass {
Future<dynamic> onBackgroundMessageHandler(RemoteMessage message) async {
print('on Background $message');
}
// ...
}
After
Future<dynamic> onBackgroundMessageHandler(RemoteMessage message) async {
print('on Background $message');
}
class MyNotificationClass {
// ...
}
android -> app -> src -> build.gradle
dependencies {
implementation 'com.google.android.material:material:1.3.0'
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
// Import the Firebase BoM
implementation platform('com.google.firebase:firebase-bom:26.3.0')
// Add the dependency for the Firebase SDK for Google Analytics
// When using the BoM, don't specify versions in Firebase dependencies
implementation 'com.google.firebase:firebase-analytics'
implementation 'com.google.firebase:firebase-auth'
implementation 'com.google.firebase:firebase-messaging'
}
// ADD THIS AT THE BOTTOM
apply plugin: 'com.google.gms.google-services'
android -> build.gradle
buildscript {
ext.kotlin_version = '1.3.50'
repositories {
google()
jcenter()
}
dependencies {
//classpath 'com.android.tools.build:gradle:4.1.0'
classpath 'com.android.tools.build:gradle:3.5.3' // 3.5.0
classpath 'com.google.gms:google-services:4.3.2' // 4.3.2
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
google()
jcenter()
}
}
rootProject.buildDir = '../build'
subprojects {
project.buildDir = "${rootProject.buildDir}/${project.name}"
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
delete rootProject.buildDir
}
pubspec.yaml
cloud_firestore: ^1.0.5 #^0.14.4 #^0.13.5
firebase_database: ^6.1.2 #4.4.0
firebase_core: ^1.0.3 #^0.5.3 #^0.4.4+3
firebase_auth: ^1.1.0 #0.18.4+1 #^0.16.0
firebase_messaging: ^9.1.1 #7.0.3 #^6.0.15
firebase_dynamic_links: ^2.0.0 #0.6.3 #^0.5.0+11
firebase_analytics: ^8.0.0 #6.3.0 #^5.0.11
cloud_functions: ^1.0.3 #0.7.2 #^0.5.0
AndroidManifest.xml
<application
android:name=".Application"
android:label="app name"
android:usesCleartextTraffic="true"
android:icon="@mipmap/ic_launcher">
<activity
android:name=".MainActivity"
android:launchMode="singleTop"
android:theme="@style/LaunchTheme"
android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
android:hardwareAccelerated="true"
android:windowSoftInputMode="adjustResize">
<!-- Specifies an Android theme to apply to this Activity as soon as
the Android process has started. This theme is visible to the user
while the Flutter UI initializes. After that, this theme continues
to determine the Window background behind the Flutter UI. -->
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="@style/NormalTheme"
/>
<!-- Displays an Android View that continues showing the launch screen
Drawable until Flutter paints its first frame, then this splash
screen fades out. A splash screen is useful to avoid any visual
gap between the end of Android's launch screen and the painting of
Flutter's first frame. -->
<meta-data
android:name="io.flutter.embedding.android.SplashScreenDrawable"
android:resource="@drawable/launch_background"
/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
<intent-filter>
<action android:name="FLUTTER_NOTIFICATION_CLICK" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="@mipmap/ic_notification" />
<!-- Don't delete the meta-data below.
This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
<meta-data
android:name="flutterEmbedding"
android:value="2" />
</application>
CoffeeSnus
Updated on November 27, 2022Comments
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CoffeeSnus over 1 year
I'm trying to integrate firebase_messaging package with my flutter app. Usually it works(version 7.0.3) fine with the code I'm using(see below) but since the null-safety version was released my code doesn't work anymore. I wonder if someone could help me to find out what I'm doing wrong?
Error causing code
try { fcmToken = await _firebaseMessaging.getToken(); } catch (error) { print(error); }
Error output
E/AndroidRuntime( 8942): java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/firebase/iid/Metadata; E/AndroidRuntime( 8942): at io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingPlugin.lambda$getToken$1$FlutterFirebaseMessagingPlugin(FlutterFirebaseMessagingPlugin.java:165) E/AndroidRuntime( 8942): at io.flutter.plugins.firebase.messaging.-$$Lambda$FlutterFirebaseMessagingPlugin$p8YQXDuFBNIxl8PFaPCQJtYc3sw.call(Unknown Source:4) E/AndroidRuntime( 8942): at com.google.android.gms.tasks.zzv.run(Unknown Source:2) E/AndroidRuntime( 8942): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) E/AndroidRuntime( 8942): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) E/AndroidRuntime( 8942): at java.lang.Thread.run(Thread.java:923) E/AndroidRuntime( 8942): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.firebase.iid.Metadata" on path: DexPathList[[zip file "/data/app/~~uCa7QFzhvu5i_TZpnqat0w==/com.example.****-1cbY-LKuCoOsfZybV-Gq6g==/base.apk"],nativeLibraryDirectories=[/data/app/~~uCa7QFzhvu5i_TZpnqat0w==/com.example.****-1cbY-LKuCoOsfZybV-Gq6g==/lib/x86, /data/app/~~uCa7QFzhvu5i_TZpnqat0w==/com.example.****-1cbY-LKuCoOsfZybV-Gq6g==/base.apk!/lib/x86, /system/lib, /system_ext/lib]] E/AndroidRuntime( 8942): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:207) E/AndroidRuntime( 8942): at java.lang.ClassLoader.loadClass(ClassLoader.java:379) E/AndroidRuntime( 8942): at java.lang.ClassLoader.loadClass(ClassLoader.java:312) E/AndroidRuntime( 8942): ... 6 more
app -> src -> main -> kotlin -> Application.kt
import io.flutter.app.FlutterApplication import io.flutter.plugin.common.PluginRegistry import io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingPlugin class Application() : FlutterApplication(), PluginRegistry.PluginRegistrantCallback { override fun registerWith(registry: PluginRegistry?) { val key: String? = FlutterFirebaseMessagingPlugin::class.java.canonicalName if (!registry?.hasPlugin(key)!!) { FlutterFirebaseMessagingPlugin.registerWith(registry?.registrarFor("io.flutter.plugins.firebase.messaging.FlutterFirebaseMessagingPlugin")); } } }
app -> src -> main -> kotlin -> MainActivity.kt
import androidx.annotation.NonNull; import io.flutter.embedding.android.FlutterActivity import io.flutter.embedding.engine.FlutterEngine import io.flutter.plugins.GeneratedPluginRegistrant class MainActivity: FlutterActivity() { override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) { GeneratedPluginRegistrant.registerWith(flutterEngine); } }
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Eibo almost 3 yearsI'm having the same issue, I'm not using onBackgroundMessageHandler at all and yet I'm getting the same crash
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CoffeeSnus almost 3 yearsHmm. I can post my configuration files and you can try to edit your files and see if it works? Hope it helps.
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Eibo almost 3 yearsIt worked by downgrading from com.google.firebase:firebase-bom:28.0.1 to 27.0.0
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CoffeeSnus almost 3 yearsNice! I'm glad you managed to solve it. Happy coding!
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emanuel sanga almost 3 yearsI think bom28 is buggy, plus getToken needs vapidKey now. Not seeing that in bom26
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Suat Özkaya almost 3 yearsDowngrading to 27.0.0 also solved my problem. Thanks.
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瀧谷賢司 over 2 yearsMy problem was with react.js, but replacing the library with 27.0.0 certainly fixed it. Thank you.