androidx.multidex does not exists when launching flutter app on an android emulator

[brandonguigo]

What is the problem?

I've tried to launch the app on an Android emulator, and I have got the following error :

/Users/brandonguigo/workspace/lichess-org-mobile/android/app/src/main/java/io/flutter/app/FlutterMultiDexApplication.java:13: error: package androidx.multidex does not exist
import androidx.multidex.MultiDex;
                        ^
/Users/brandonguigo/workspace/lichess-org-mobile/android/app/src/main/java/io/flutter/app/FlutterMultiDexApplication.java:23: error: cannot find symbol
    MultiDex.install(this);
    ^
  symbol:   variable MultiDex
  location: class FlutterMultiDexApplication
2 errors

FAILURE: Build failed with an exception.

Steps to reproduce the bug

1. Clone the repo
2. Launch the app on android

What did you expect to happen?

I expected the app to launch successfully

What happened instead?

It crashed during build with a missing multidex error

Device Info

Pixel 7 Pro emulator

Operating System Version

Android 14

Additional information

It seems to be working when adding into android/app/build.gradle the following line:

dependencies {
    ...
    implementation 'com.android.support:multidex:2.0.1'
}

I have a fork branch with the fork and can make a PR if necessary :)