Manifest merger failed : Attribute application@appComponentFactory .. error

i upgrade my application's targetSdk version from 27 to 28
and below error shown.
pls help.

at proguard-rules.pro file , added
-keep class android.support.v7.widget.** { *; }

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:5:5-65:19 to override.