Duplicate class android.support.v4.app.INotificationSideChannel found in modules classes?

Question

I am developing a news app but I am getting following errors in from gradle console

(androidx.core:core:1.0.1) and classes.jar (com.android.support:support-c         


        

Answer 1

You can add below lines into your gradle.properties file:

android.useAndroidX=true
android.enableJetifier=true

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Details:

If you want to use androidx-namespaced libraries in a new project, you need to set the compile SDK to Android 9.0 (API level 28) or higher and set both of the mentioned Android Gradle plugin flags to true.

android.useAndroidX: When this flag is set to true, the Android plugin uses the appropriate AndroidX library instead of a Support Library. The flag is false by default if it is not specified.

android.enableJetifier: When this flag is set to true, the Android plugin automatically migrates existing third-party libraries to use AndroidX dependencies by rewriting their binaries. The flag is false by default if it is not specified.