<projectDir>/android/app/src/main/res/values/AndroidManifest.xml
    Contains a meta-data entry that encodes
    the mapping between loading units and component name the
    loading unit is associated with. This mapping is used by the
    embedder to convert Dart’s internal loading unit id
    to the name of a deferred component to install. For example:
        
    ...
    <application
        android:label="MyApp"
        android:name="io.flutter.app.FlutterPlayStoreSplitApplication"
        android:icon="@mipmap/ic_launcher">
        ...
        <meta-data android:name="io.flutter.embedding.engine.deferredcomponents.DeferredComponentManager.loadingUnitMapping" android:value="2:boxComponent"/>
    </application>
    ...
        
      


    The gen_snapshot validator won’t run until the prebuild
validator passes.