Add an AAR dependency in Android Studio 4.2 - android-studio

Question

I'm trying to use https://github.com/brim-borium/spotify_sdk in Android Studio with Flutter
As such, I need to import Spotify SDK (two AAR files), and to be able to add them to the build process.
Because of spotify_sdk (flutter package), I can't use (which seem to work)
implementation (name: 'spotify-app-remote', ext: 'aar')
implementation (name: 'spotify-auth', ext: 'aar')
in my project, I specifically need Gradle to consider spotify-app-remote & spotify-auth as projects, because spotify_sdk imports them like this.
implementation project(':spotify-auth')
implementation project(':spotify-app-remote')
Here is the Gradle error:
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.
> Could not resolve all task dependencies for configuration ':app:debugCompileClasspath'.
> Could not resolve project :spotify-auth.
Required by:
project :app
> No matching configuration of project :spotify-auth was found. The consumer was configured to find an API of a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'debug', attribute 'org.jetbrains.kotlin.platform.type' with value 'androidJvm' but:
- None of the consumable configurations have attributes.
> Could not resolve project :spotify-app-remote.
Required by:
project :app
> No matching configuration of project :spotify-app-remote was found. The consumer was configured to find an API of a component, as well as attribute 'com.android.build.api.attributes.BuildTypeAttr' with value 'debug', attribute 'org.jetbrains.kotlin.platform.type' with value 'androidJvm' but:
- None of the consumable configurations have attributes.
* 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 1s
Exception: Gradle task assembleDebug failed with exit code 1
Here is my settings.gradle
def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
def properties = new Properties()
assert localPropertiesFile.exists()
localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
def flutterSdkPath = properties.getProperty("flutter.sdk")
assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
So I need to be able to force Gradle to import these AAR as a projet.
Here is my project structure, if it useful
Project Structure
From documentation and StackOverflow posts, I've read that Android Studio used to have an Import AAR/Jar file functionality. It is now missing in Android Studio 4.2
Is there any functionality that replaces Import AAR/Jar file? Or any way to force Gradle to recognize these files as projects?
Thank you very much