After updating the Android SDK, I started Android Studio. Now its showing background task continuously running with message
Updating indices: Scannin
This happens to me after updating the Android Gradle plugin version from (3.5.3) to (3.6.2) and Gradle version from (5.4.1) to (5.6.4) it solved after downgrading the plugin again to change Android Gradle plugin version and Gradle version: File > Project Structure > Project
reference: https://developer.android.com/studio/releases/gradle-plugin.html