10/10 points: Provide a valid pubspec.yaml

5/5 points: Provide a valid README.md

5/5 points: Provide a valid CHANGELOG.md

10/10 points: Use an OSI-approved license

Detected license: BSD-2-Clause.

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

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

• Running flutter pub outdated failed with the following output:

Because fsm2 >=2.0.0 <2.0.5 depends on dcli ^0.50.0 which depends on posix ^2.0.0, fsm2 >=2.0.0 <2.0.5 requires posix ^2.0.0.
And because posix >=2.0.0-nullsafety.1 <3.1.0 depends on ffi ^1.0.0, fsm2 >=2.0.0 <2.0.5 requires ffi ^1.0.0.

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

• Could not run flutter pub outdated: flutter pub get failed:

OUT:
Resolving dependencies...
ERR:
Because fsm2 >=2.0.0 <2.0.5 depends on dcli ^0.50.0 which depends on posix ^2.0.0, fsm2 >=2.0.0 <2.0.5 requires posix ^2.0.0.
    And because posix >=2.0.0-nullsafety.1 <3.1.0 depends on ffi ^1.0.0, fsm2 >=2.0.0 <2.0.5 requires ffi ^1.0.0.
    Because file_picker >=8.3.3 depends on ffi ^2.1.3 and file_picker >=5.0.0 <8.3.3 depends on ffi ^2.0.1, file_picker >=5.0.0 requires ffi ^2.0.1.
    Thus, fsm2 >=2.0.0 <2.0.5 is incompatible with file_picker >=5.0.0.
(1) So, because fsm2 ^2.0.5 depends on dcli ^1.6.2, if file_picker >=5.0.0 and fsm2 ^2.0.0 then dcli ^1.6.2.

    Because dcli >=1.35.7 <2.0.0-beta.5 depends on win32 ^3.0.0 and dcli >=1.33.2 <1.35.7 depends on win32 ^2.7.0, dcli >=1.33.2 <2.0.0-beta.5 requires win32 ^2.7.0 or ^3.0.0.
    Because dcli >=1.30.3 <1.33.2 depends on win32 ^2.6.1 and dcli >=1.5.0 <1.31.3 depends on ffi ^1.1.1, dcli >=1.5.0 <1.33.2 requires win32 ^2.6.1 or ffi ^1.1.1.
    Thus, dcli >=1.5.0 <2.0.0-beta.5 requires win32 >=2.6.1 <3.0.0 or ^3.0.0 or ffi ^1.1.1.
    And because file_picker >=5.0.0 <8.3.3 depends on ffi ^2.0.1, if dcli >=1.5.0 <2.0.0-beta.5 and file_picker >=5.0.0 <8.3.3 then win32 >=2.6.1 <3.0.0 or ^3.0.0.
[15 more lines]

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

0/20 points: Compatible with dependency constraint lower bounds

flutter pub downgrade failed with:

OUT:
Resolving dependencies...
ERR:
Because fsm2 >=2.0.0 <2.0.5 depends on dcli ^0.50.0 which depends on posix ^2.0.0, fsm2 >=2.0.0 <2.0.5 requires posix ^2.0.0.
    And because fsm2 ^2.0.5 depends on dcli ^1.6.2 and posix >=2.0.0-nullsafety.1 <3.1.0 depends on ffi ^1.0.0, fsm2 ^2.0.0 requires dcli ^1.6.2 or ffi ^1.0.0.
    And because dcli >=1.5.0 <1.31.3 depends on ffi ^1.1.1 and dcli >=1.35.7 <2.0.0-beta.5 depends on win32 ^3.0.0, fsm2 ^2.0.0 requires ffi ^1.0.0 or win32 ^3.0.0 or dcli >=1.31.3 <1.35.7.
    And because dcli >=1.30.3 <1.33.2 depends on win32 ^2.6.1 and dcli >=1.33.2 <1.35.7 depends on win32 ^2.7.0, fsm2 ^2.0.0 requires ffi ^1.0.0 or win32 >=2.6.1 <3.0.0 or ^3.0.0.
(1) So, because file_picker >=8.3.3 depends on both ffi ^2.1.3 and win32 ^5.9.0, fsm2 ^2.0.0 is incompatible with file_picker >=8.3.3.

    Because dcli >=1.33.2 <1.35.7 depends on win32 ^2.7.0 and dcli >=1.30.3 <1.33.2 depends on win32 ^2.6.1, dcli >=1.30.3 <1.35.7 requires win32 ^2.6.1.
    And because dcli >=1.5.0 <1.31.3 depends on ffi ^1.1.1, dcli >=1.5.0 <1.35.7 requires win32 ^2.6.1 or ffi ^1.1.1.
    And because fsm2 ^2.0.5 depends on dcli ^1.6.2 and dcli >=1.35.7 <2.0.0-beta.5 depends on win32 ^3.0.0, fsm2 ^2.0.5 requires win32 ^2.6.1 or ^3.0.0 or ffi ^1.1.1.
    Because file_picker >=8.0.6 <8.3.3 depends on win32 ^5.5.1 and file_picker >=7.1.0 <8.0.6 depends on win32 ^5.1.1, file_picker >=7.1.0 <8.3.3 requires win32 ^5.1.1.
[11 more lines]

Run flutter pub downgrade and then flutter 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.