I am having trouble building my ionic 4 apps. Every time I try to build the android app it gives the following error.
FAILURE: Build failed with an exception.
* What went wrong: Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes. Program type already present: android.support.v4.os.ResultReceiver$MyResultReceiver
* Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 19s
> Task :app:transformDexArchiveWithExternalLibsDexMergerForDebug FAILED 36 actionable tasks: 2 executed, 34 up-to-date F:\WorkSpace\Ionic Programs\Project\sujagSindhiSamiti\platforms\android\gradlew: Command failed with exit code 1 Error output: D8: Program type already present: android.support.v4.os.ResultReceiver$MyResultReceiver
FAILURE: Build failed with an exception.
* What went wrong: Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes. Program type already present: android.support.v4.os.ResultReceiver$MyResultReceiver
* Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 19s [ERROR] An error occurred while running subprocess cordova.
cordova.cmd build android exited with exit code 1.
Re-running this command with the --verbose flag may provide more information.
I have followed instructions for push notification: https://ionicframework.com/docs/native/fcm
I have followed instructions for verifying phone number: https://ionicframework.com/docs/native/firebase-authentication
After adding a plugin for firebase-authentication while running app error occurs.
app.module.ts
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { RouteReuseStrategy } from '@angular/router';
import { IonicModule, IonicRouteStrategy } from '@ionic/angular';
import { SplashScreen } from '@ionic-native/splash-screen/ngx';
import { StatusBar } from '@ionic-native/status-bar/ngx';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { HttpClientModule } from '@angular/common/http';
import { Device } from '@ionic-native/device/ngx';
import { CallNumber } from '@ionic-native/call-number/ngx';
import { Contacts } from '@ionic-native/contacts/ngx';
import { SocialSharing } from '@ionic-native/social-sharing/ngx';
import { File } from '@ionic-native/file/ngx';
import { FileTransfer, FileTransferObject } from '@ionic-native/file-transfer/ngx';
import { FilePath } from '@ionic-native/file-path/ngx';
import { FileChooser } from '@ionic-native/file-chooser/ngx';
import { InAppBrowser } from '@ionic-native/in-app-browser/ngx';
import { FCM } from '@ionic-native/fcm/ngx';
import { FirebaseAuthentication } from '@ionic-native/firebase-authentication/ngx';
@NgModule({
declarations: [AppComponent],
entryComponents: [],
imports: [BrowserModule, IonicModule.forRoot(), AppRoutingModule, HttpClientModule],
providers: [
StatusBar,
SplashScreen,
Device,
CallNumber,
Contacts,
SocialSharing,
File,
FileTransfer,
FileTransferObject,
FileChooser,
FilePath,
InAppBrowser,
FCM,
FirebaseAuthentication,
{ provide: RouteReuseStrategy, useClass: IonicRouteStrategy }
],
bootstrap: [AppComponent]
})
export class AppModule { }
login.ts
import { Device } from '@ionic-native/device/ngx';
import { FCM } from '@ionic-native/fcm/ngx';
import { FirebaseAuthentication } from '@ionic-native/firebase-authentication/ngx';
constructor(private router: Router, public platform: Platform, private device: Device,private fcm: FCM, private firebaseAuthentication: FirebaseAuthentication) {
this.platform.ready()
.then(() => {
this.fcm.onNotification().subscribe(data => {
if (data.wasTapped) {
console.log("Received in background");
} else {
console.log("Received in foreground");
};
});
this.fcm.onTokenRefresh().subscribe(token => {
alert(token);
});
})
}
subscribeToTopic() {
this.fcm.subscribeToTopic('enappd');
}
getToken() {
this.fcm.getToken().then(token => {
alert(token);
this.userData.fcm_id = token;
});
}
unsubscribeFromTopic() {
this.fcm.unsubscribeFromTopic('enappd');
}
login(){
this.userData.imei_no = this.device.uuid;
this.fcm.getToken().then(token => {
alert('FCM Token: ' + token);
this.userData.fcm_id = token;
});
this.firebaseAuthentication.verifyPhoneNumber("+919824592145", 30000).then((verificationID) => {
console.log(verificationID);
this.verificationID = verificationID;
alert(verificationID);
}).catch((error) => {
console.log(error);
alert(error);
});
}
