What are the prerequisites?
This Flutter app can be hosted into Google Play Store + Apple Appstore as your branded matrimonial CMS app. The app will communicate with your hosted matrimonial CMS web application through APIs. That means the prerequisite to publish the matrimonial Mobile application is to have the matrimonial CMS Web application in the latest version always.
Flutter version must be : Flutter 3.0.2 • channel stable
Dart version must be : Dart 2.17.3
Make sure your flutter and dart versions are correct. Follow the flutter documentation from https://flutter.dev/docs/get-started/install to install the given version of flutter in your pc/mac.