Try to migrate AndroidX to Android AppCompat

Question

I have errors when migrate from AndroidX to Appcompat. Here is log build:

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:1.0.1] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
Suggestion: add 'tools:replace="android:appComponentFactory"' to <application> element at AndroidManifest.xml:18:5-138:19 to override.

Check minimum required gradle version for AndroidX migration. If that is fine then add tools:replace="android:appComponentFactory" to application tag. — Pankaj Kumar, Mar 04 '19 at 04:09
Possible duplicate of [Manifest Merger fails for appComponentFactory](https://stackoverflow.com/questions/52135251/manifest-merger-fails-for-appcomponentfactory) — Zoe, Mar 06 '19 at 12:22

score 4 · Answer 1 · answered Mar 04 '19 at 04:20

4

So you want to migrate back to support from androidX. If that will be the case the remove below libs from build.gradle and add old support library instead.

androidx.core:core:1.0.1

And also remove below two properties in gradle.properties files.

android.useAndroidX=true

android.enableJetifier=true

Or if you want to migrate to Androidx then add these two properties to gradle.properties file.

android.useAndroidX=true

android.enableJetifier=true

answered Mar 04 '19 at 04:20

Hussnain Haidar

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I have tried. But got some issues : java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex Build log show this. I have add Multidex in build.gradle but it does not work – Dương Nguyễn Văn Mar 04 '19 at 08:03
here is my build.gradle file : – Dương Nguyễn Văn Mar 04 '19 at 08:15
Show me your gradle.properties file – Hussnain Haidar Mar 04 '19 at 08:20
multiDexEnabled true un-comment this – Hussnain Haidar Mar 04 '19 at 08:29
I have try add multidexEnable true. but it does work – Dương Nguyễn Văn Mar 04 '19 at 08:31
android.enableD8 = false comment this in gradle.properties file – Hussnain Haidar Mar 04 '19 at 08:32
yep. I have commented. sometime my tool log : More than one file was found with OS independent path 'META-INF/androidx.legacy_legacy-support-core-ui.version' sometime it's : More than one file was found with OS independent path 'META-INF/androidx.customview_customview.version' – Dương Nguyễn Văn Mar 04 '19 at 08:34
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/189374/discussion-between-hussnain-haidar-and-dng-nguyn-vn). – Hussnain Haidar Mar 04 '19 at 08:34

Try to migrate AndroidX to Android AppCompat

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