Json_serializable.dart: Upgrade to latest pkg:build

[sarbogast]

I cannot get my Flutter build to run with all the latest versions of Flutter, build_runner and json_serializable because it seems like json_serializable is still depending on an old version of build. Here is my pubspec.yaml

name: myproject
description: A new Flutter project.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
version: 1.0.0+1

environment:
  sdk: ">=2.7.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter
  flutter_localizations:
    sdk: flutter
  intl: ^0.17.0
  cupertino_icons: ^1.0.2
  firebase_core: ^1.0.1
  firebase_auth: ^1.0.1
  firebase_database: ^6.1.0
  firebase_analytics: ^7.1.1
  firebase_crashlytics: ^1.0.0
  firebase_performance: ^0.6.0
  cloud_firestore: ^1.0.1
  google_fonts: ^2.0.0
  logger: ^0.9.4
  flutter_bugfender: ^1.2.2
  url_launcher: ^6.0.2
  flutter_markdown: ^0.6.0
  intl_phone_field: ^1.4.4
  pin_code_fields: ^7.0.0
  json_annotation: ^4.0.0
  form_validators: ^0.3.0
  uuid: ^3.0.1
  date_time_picker: #^1.1.1
    git:
      url: git://github.com/m3uzz/date_time_picker.git

dev_dependencies:
  flutter_test:
    sdk: flutter
  build_runner: ^1.12.1
  json_serializable: ^4.0.2

dependency_overrides:

flutter:
  generate: true

  uses-material-design: true

  assets:
    - assets/images/

And here is the error I get when running flutter pub get

Because json_serializable >=4.0.0 depends on build ^1.6.1 and build_runner >=1.12.0 depends on build >=2.0.0 <2.1.0, json_serializable >=4.0.0 is incompatible with build_runner >=1.12.0.

So, because blindly depends on both build_runner ^1.12.1 and json_serializable ^4.0.2, version solving failed.
pub get failed (1; So, because blindly depends on both build_runner ^1.12.1 and json_serializable ^4.0.2, version solving failed.)

[kevmoo]

Blocked on pkg:source_gen migrating – which is blocked on pkg:dart_style

[sarbogast]

This Flutter 2 release is really one hell of a dependency hot mess

[pratikpparikh]

@sarbogast I agree and the blockers are not get resolved as quickly as needed.

[kevmoo]

@sarbogast @pratikpparikh – the ecosystem is HUGE and very complex. Mistakes here cause a lot of problems so we're being very careful. Your patience is appreciated.

[kevmoo]

Fixed in https://github.com/google/json_serializable.dart/pull/833

[helgoboss]

@kevmoo Amazing, you fixed it in almost exactly the moment I ran into it. Thanks! :)