objectbox_generator: support build 4.0.0 to allow depending on build_runner ^2.8.0

[thzero]

Is there an existing issue?

• [x ] I have searched existing issues

Build info

• objectbox version: 4.3.1
• Flutter/Dart version: 3.35.3/3.9.2
• Build OS: Windows 11
• Deployment OS or device: n/a

Steps to reproduce

Include build_runner: ^2.8.0 in your yaml and it

because "project" depends on both build_runner ^2.8.0 and objectbox_generator any, version solving failed.

Expected behavior

To successfully compile with the latest tools, not a build_runner version that is 2 YEARS OLD!
https://pub.dev/packages/build_runner/versions/2.4.1

Actual behavior

Does not compile.

Code

Code

environment:
  sdk: '>=2.18.0 <4.0.0'
  flutter: '>=3.3.0'

dependencies:
  flutter:
    sdk: flutter
  objectbox: ^4.3.1

dev_dependencies:
  flutter_test:
    sdk: flutter
  build_runner: ^2.4.1
  objectbox_generator: any

Logs, stack traces

Logs

because "project" depends on both build_runner ^2.8.0 and objectbox_generator any, version solving failed.

[greenrobot-team]

I just checked with the relations Flutter demo app in this repository and it is possible to use build_runner up to version 2.7.1 from 14 days ago.

I suggest to use build_runner: ^2.7.1 in your pubspec.yaml and let dart pub upgrade figure out the latest possible version.

Then once we update the objectbox_generator package to be compatible your project will automatically get a later build_runner version.

The actual issue here is that objectbox_generator depends on build ^3.0.0. But build_runner >=2.7.2 depends on build 4.0.0, the next major version.

The full error message when using build_runner: ^2.8.0 also shows this:

Because every version of objectbox_generator from path depends on build ^3.0.0 and build_runner >=2.7.2 depends on build 4.0.0, objectbox_generator from path is incompatible with build_runner >=2.7.2.
So, because objectbox_demo_relations depends on both build_runner ^2.8.0 and objectbox_generator from path, version solving failed.

For our reference, related to internal issue objectbox/objectbox-dart#154

[thzero]

Thanks. I was going to report that I got it to work with 2.7.1 but you beat me to it.

[greenrobot-team]

As a general suggestion for everyone: add new dependencies using the dart pub add command. It will automatically pick a compatible version string.

[wPLcz]

Any update? It´s huge pain in the ass

[greenrobot-team]

Release 5.0.1 is available which resolves this issue.

To update to this release, for a Flutter project run flutter pub upgrade or for a Dart Native project dart pub upgrade.