[Flutter] Dart macros error "The part-of directive must be the only directive in a part."

I'm trying to use an experimental feature from Dart called macros.

For now, there's a limited support from IDEs (The only way to show the augmented classes/methods is in VSCode) and it's required to use the Flutter beta channel.

What I've got so far:

• A custom working Macro
• An augmented class with the desired code

However, theres a problem with the imports section in the augmented file.

The fully generated code:

part of 'package:macros_test/home_module.dart';

import 'dart:core' as prefix0; // SHOWS ERROR
import 'package:flutter_modular/src/presenter/models/bind.dart' as prefix1; // SHOWS ERROR

augment class HomeModule {
augment prefix0.List<prefix1.Bind> get binds {
return [...augmented];}
}


The analyzer shows me this error for both imports

The part-of directive must be the only directive in a part. Try removing the other directives, or moving them to the library for which this is a part.dart(non_part_of_directive_in_part)
​

Anybody knows what's going on here?

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