Creating Flutter AAR file using different lib/main_XXX.dart file

Question

Everyone. So I am trying to integrate Flutter module inside App(Android app).

So, I have followed this tutorial and everything worked correctly.

To build an aar file the command is

 cd some/path/my_flutter
 flutter build aar

As per my project requirement, I thought of creating different configuration to main.dart file. Hence, I created main_dev_dog.dart and main_dev_cat.dart files.

The contents of this file is for Cat:

import 'package:flutter/material.dart';
import 'app_config.dart';

import 'my_app.dart';

void main() {
  const configApp = AppConfig(
      environment: Environment.DEV_CAT, appTitle: "Cat Dev", child: MyApp());

  runApp(configApp);
}

For Dog:

import 'package:flutter/material.dart';
import 'app_config.dart';

import 'my_app.dart';

void main() {
  const configApp = AppConfig(
      environment: Environment.DEV_DOG, appTitle: "Dog Dev", child: MyApp());

  runApp(configApp);
}

PS: I am not trying to create Flavors.

My intentions is to create aar files which will have different configuration. And I can use those libraries(aar) in Android Native app.

I am not sure if it is possible? But I know we can build different APK's using different main.dart files.

For example:

flutter build apk -t lib/main_dev_dog.dart

or

flutter build apk -t lib/main_dev_cat.dart

So, I tried following command to create different AAR:

flutter build aar lib/main_dev_cat.dart

But it is not building and I am getting following error.

Could not transfer artifact com.akshay.first.my_flutter_module:flutter_debug:aar:1.0 from/to remote (file://./build/host/outputs/repo): Repository path /build/host/outputs/repo does not exist, and cannot be created.
Could not transfer artifact com.akshay.first.my_flutter_module:flutter_debug:pom:1.0 from/to remote (file://./build/host/outputs/repo): Specified destination directory cannot be created: /build/host/outputs/repo/com/akshay/first/my_flutter_module/flutter_debug/1.0

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':flutter:uploadArchives'.
> Could not publish configuration 'archives'
   > Failed to deploy artifacts: Could not transfer artifact com.akshay.first.my_flutter_module:flutter_debug:aar:1.0 from/to remote (file://./build/host/outputs/repo): Repository path /build/host/outputs/repo does not exist, and cannot be created.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s

Please help.