Android Studio: Background task running indefinitely

Question

After updating the Android SDK, I started Android Studio. Now its showing background task continuously running with message

Updating indices: Scannin

Answer 1

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

Answer 2

I struggled with this issue for almost one hour, and after that found that this is the adb connection issue, you can disconnect your device once and stops all the working adb processes. This issue may get resolved.

Answer 3

Unplug all the phones and plug them again, it gets working. It is related to adb as stated here : https://code.google.com/p/android/issues/detail?id=172387 and a known bug that is to be fixed in the future

Answer 4

Stopping and closing the emulators that I had running solved this issue for me on the latest version of Android Studio.