When I press Tools > AGP Upgrade Assistant
button, nothing happens.
I am using Arctic Fox 2020.3.1 Patch 4. I also tried this on Bumblebee 2021.1.1 and the same problem occurs.
Other maybe relevant info
Fluter Android Studio plugin 63.2.1
Dart Android Studio plugin 203.8452
Dart 2.15.1
Flutter 2.8.1
Android gradle plugin 3.6.0
Gradle 6.1.1-all
The AGP Upgrade Assistant opens only when you open the Android folder as an Android project.
To do so choose File --> Open and select the android
folder in your project. This will open a new window (IDE) and the AGP upgrade assistant button should be available