Error occured during insertion of AdMob or Firebase Codes in gradle

Question

i have android studio project, when i insert AdMob or Firebase Codes in gradle, see this error

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 <application> element at AndroidManifest.xml:8:1-25:15 to override.

This is my manifest manifest

This is the gradle

    dependencies {
    classpath 'com.android.tools.build:gradle:3.4.1'
    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

    classpath 'com.google.gms:google-services:4.2.0'
}

Possible duplicate of [Manifest Merger fails for appComponentFactory](https://stackoverflow.com/questions/52135251/manifest-merger-fails-for-appcomponentfactory) — Zoe, Jun 22 '19 at 14:28
did you try to add tools:replace="android:appComponentFactory" this to application tag in android manifest xml file? — BLACKMAMBA, Jun 22 '19 at 14:33
Even if I have created a new simple project I get the same problem — Mohamed Slimane, Jun 22 '19 at 14:59

Mohamed Slimane · Answer 1 · 2019-06-22T17:16:06.880

0

its working after add this code to <application>

    tools:replace="android:appComponentFactory"
    android:appComponentFactory="androidx"

edited Jun 22 '19 at 17:16

answered Jun 22 '19 at 16:14

Mohamed Slimane

311
3
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score 0 · Accepted Answer · answered Jun 22 '19 at 22:37

The new Firebase libraries and the new Google Play Libraries require androidx. Since you are using these libraries, you are using both support libraries and androidx libraries.

Check the note:

This release is a MAJOR version update and includes breaking changes. With this release, libraries are migrated from the Android Support Libraries to the Jetpack (AndroidX) Libraries. The updated libraries will not work unless you make the following changes in your app:

Upgrade com.android.tools.build:gradle to v3.2.1 or later.
Upgrade compileSdkVersion to 28 or later.
Update your app to use Jetpack (AndroidX); follow the instructions in Migrating to AndroidX.

oh thank you . i have uninstall android studio . and reinstall it — Mohamed Slimane, Jun 23 '19 at 09:26
@MohamedSlimane It is not related to an installation. If you are using the new libraries it will always have this problem — Gabriele Mariotti, Jun 24 '19 at 09:06

Error occured during insertion of AdMob or Firebase Codes in gradle

2 Answers2