Both source_gen:combining_builder and mix_generator may output. Potential outputs must be unique across all builders.

[definev]

Package version

No response

Flutter version

Both source_gen:combining_builder and mix_generator may output lib/configurations/di_initialize.g.dart. Potential outputs must be unique across all builders. See https://github.com/dart-lang/build/blob/master/docs/faq.md#why-do-builders-need-unique-outputs

Steps to reproduce

Using two different code gen package that use the same .g.dart output file.

Expected results

Generate file successfully

Actual results

Conflicting therefore i can't using mix generator

Code sample

Code sample

[Paste your code here]

[definev]

@leoafarias hello, this bug is prevent us from using mix in pub.dev, the workaround it is manually change the .g.dart generated file to .mix.dart in mix_generator. But that very annoying

[skyegallup]

This might be a duplicate of #561 ?

@definev If it's helpful, I was able to work around the issue by updating my project's build.yaml:

# assuming all widgets using `mix_generator` are in `lib/widgets/`:
targets:
  $default:
    builders:
      mix_generator:
        generate_for:
          include:
            - lib/widgets/*.dart
            - lib/widgets/**/*.dart
      source_gen:combining_builder:
        generate_for:
          exclude:
            - lib/widgets/*.dart
            - lib/widgets/**/*.dart

This keeps the two builders from trying to generate *.g.dart files for the same source files. However, it'd be simpler if mix_generator were updated to play nicer with source_gen better, or at least to use a different file extension instead of .g.dart.