[android] Install shows error in console: INSTALL FAILED CONFLICTING PROVIDER

If you are using the Facebook SDK then the issue might be in the "authorities" value you provide for the Facebook provider.

REPLACE -

<provider
        android:name="com.facebook.FacebookContentProvider"
        android:authorities="com.facebook.FacebookContentProvider"
        android:exported="true" />

WITH ->

<provider
        android:name="com.facebook.FacebookContentProvider"
        android:authorities="com.facebook.FacebookContentProvider[YOUR_APP_ID]"
        android:exported="true" />

You might need to change the defaultConfig.ApplicationId also as suggested in other answers.