Ionic4: Execution failed for task ':app:processDebugManifest'

user_10946147 0
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I'm working on an ionic4 app with angular and firebase.

I was building the app to android using: ionic cordova run android, it was successfully built the application. Suddenly when I'm running the same command there is an error showing:

Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91 is also present at [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory). Suggestion: add 'tools:replace="android:appComponentFactory"' to element at AndroidManifest.xml:5:5-37:19 to override.

I've tried to add tools:replace="android:appComponentFactory" to element at AndroidManifest.xml. And I've have tried also to delete the platforms/android and install it again without getting the result

Does anyone have any idea about what happening? or can anyone help me with this issue!

ionic4 angular firebase
3 Answers

I had a similar issue I think, and found out it was because of AndroidX plugins. Here is what worked for me :

ionic cordova plugin add cordova-plugin-androidx
ionic cordova plugin add cordova-plugin-androidx-adapter

Simply adding these plugins removed any build error.

Also, if you're still using the original firebase plugin you should replace it with one of the fixed forks : https://github.com/wizpanda/cordova-plugin-firebase-lib or https://github.com/dpa99c/cordova-plugin-firebase

And cordova clean android then rebuild.

Note that you also need Android SDK 28 for it to work, and I recommend updating Cordova and ionic as well.

user_19283800

After spending number of hours on this issue finally found the solution. This build failure is due to a Major version release of the Google Play Services and Firebase on 17/06/2019 

ionic cordova platform rm android
ionic cordova platform add android@8.0.0 
ionic cordova plugin add cordova-plugin-androidx 
ionic cordova plugin add cordova-plugin-androidx-adapter

Note: This will resolve your issue

Note: If you are using cordova-plugin-firebase and encountering errors, you can use this plugin which is published as cordova-plugin-firebasex and is fixed to resolve issues caused by the new Firebase SDK:

rm -Rf platforms/android
cordova plugin rm cordova-plugin-firebase
rm -Rf plugins/ node_modules/
npm install
cordova plugin add cordova-plugin-firebasex
cordova platform add android

I hope this will help.

cheers!

user_60211120

Try to remove and re-add the android platform

ionic cordova platform remove android
ionic cordova platform add android
user_17343420
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