10/10 points: Provide a valid pubspec.yaml

0/5 points: Provide a valid README.md

   ╷
20 │ <p><a href="http://pub.flutter-io.cn/packages/messenger">Pub.dartlang.org</a> project page.
   │    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   ╵

0/5 points: Provide a valid CHANGELOG.md

10/10 points: Use an OSI-approved license

Detected license: GPL-2.0.

0/10 points: 20% or more of the public API has dartdoc comments

Dependency resolution failed, unable to run dartdoc.

0/10 points: Package has an example

0/20 points: Platform support detection failed

0/0 points: WASM compatibility

Unable to detect compatibility with runtime wasm, and this package will not be rewarded full points in a future version of the scoring model.

See https://dart.cn/web/wasm for details.

0/50 points: code has no errors, warnings, lints, or formatting issues

• Running dart pub outdated failed with the following output:

The lower bound of "sdk: '>0.8.7 <2.0.0'" must be 2.12.0'
or higher to enable null safety.

0/10 points: All of the package dependencies are supported in the latest version

• Could not run dart pub outdated: dart pub get failed:

OUT:
Resolving dependencies...
ERR:
The lower bound of "sdk: '>0.8.7 <2.0.0'" must be 2.12.0'
or higher to enable null safety.

The current Dart SDK (3.9.3) only supports null safety.

For details, see https://dart.cn/null-safety

10/10 points: Package supports latest stable Dart and Flutter SDKs

0/20 points: Compatible with dependency constraint lower bounds

dart pub downgrade failed with:

OUT:
Resolving dependencies...
ERR:
The lower bound of "sdk: '>0.8.7 <2.0.0'" must be 2.12.0'
or higher to enable null safety.

The current Dart SDK (3.9.3) only supports null safety.

For details, see https://dart.cn/null-safety

Run dart pub downgrade and then dart analyze to reproduce the above problem.

You may run dart pub upgrade --tighten to update your dependency constraints, see dart.dev/go/downgrade-testing for details.