Unable to upload APK on play console getting (Upload a valid app bundle) issue - flutter

Question

I am getting an error while uploading apk to play console for first time. I have released 2 apps with same account and did not get any error, but this is the 3rd app and it is working fine on each mode (--release, --debug, --profile). I am building apk in flutter using --dart-define using the following command

flutter build apk --release --split-per-abi --no-tree-shake-icons --dart-define=ID=1234 --dart-define=APP_NAME=test_app --dart-define=APP_SUFFIX=.test

below is issue screenshot

Answer 1

Google Play store simply does not accepts APK anymore for publishing the apps, you have to upload the bundle of the Android app.

For reference

For Native Android
Android Studio-> Build-> Generate Signed Bundle /APK...

For Flutter See this and dev doc

From the command line:

Enter cd [project]
Run flutter build appbundle
(Running flutter build defaults to a release build.)

Answer 2

You are uploading a .apk file in Google Play Console but you have to upload the .aab App Bundle file.