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: MIT.

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

Dependency resolution failed, unable to run dartdoc.

10/10 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• Running dart pub outdated failed with the following output:

Because ngx_dart >=9.0.0-dev.1 depends on ngx_compiler ^9.0.0-dev.1 which depends on analyzer ^6.5.0, ngx_dart >=9.0.0-dev.1 requires analyzer ^6.5.0.
(1) So, because analyzer >=6.5.0 <6.5.1 depends on macros >=0.1.0-main.0 <0.1.1, ngx_dart >=9.0.0-dev.1 requires macros >=0.1.0-main.0 <0.1.1 or analyzer ^6.5.1.

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• Could not run dart pub outdated: dart pub get failed: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:
Because ngx_dart >=9.0.0-dev.1 depends on ngx_compiler ^9.0.0-dev.1 which depends on analyzer ^6.5.0, ngx_dart >=9.0.0-dev.1 requires analyzer ^6.5.0.
(1) So, because analyzer >=6.5.0 <6.5.1 depends on macros >=0.1.0-main.0 <0.1.1, ngx_dart >=9.0.0-dev.1 requires macros >=0.1.0-main.0 <0.1.1 or analyzer ^6.5.1.

    Because no versions of macros match >=0.1.0-main.0 <0.1.0-main.0 and macros >=0.1.0-main.0 <0.1.0-main.1 depends on _macros 0.1.0 from sdk, macros >=0.1.0-main.0 <0.1.0-main.1 requires _macro[...]
    And because macros >=0.1.0-main.1 <0.1.0-main.2 depends on _macros 0.1.1 from sdk, macros >=0.1.0-main.0 <0.1.0-main.2 requires _macros 0.1.0 or 0.1.1 from sdk.
    And because macros >=0.1.0-main.2 <0.1.0-main.3 depends on _macros 0.1.2 from sdk and macros >=0.1.0-main.3 <0.1.0-main.4 depends on _macros 0.1.3 from sdk, macros >=0.1.0-main.0 <0.1.0-main.[...]
    And because macros >=0.1.0-main.4 <0.1.0-main.5 depends on _macros 0.1.4 from sdk and macros >=0.1.0-main.5 <0.1.0-main.6 depends on _macros 0.1.5 from sdk, macros >=0.1.0-main.0 <0.1.0-main.[...]
    And because macros >=0.1.0-main.6 <0.1.0-main.7 depends on _macros 0.1.6 from sdk and macros >=0.1.0-main.7 <0.1.1-main.0 depends on _macros 0.1.7 from sdk, macros >=0.1.0-main.0 <0.1.1-main.[...]
    And because ngx_dart >=9.0.0-dev.1 requires macros >=0.1.0-main.0 <0.1.1 or analyzer ^6.5.1 (1), ngx_dart >=9.0.0-dev.1 requires analyzer ^6.5.1 or _macros 0.1.0 or 0.1.1 or 0.1.2 or 0.1.3 or[...]
    And because analyzer >=6.5.1 <6.5.2 depends on macros >=0.1.1-main.0 <0.1.2, ngx_dart >=9.0.0-dev.1 requires _macros 0.1.0 or 0.1.1 or 0.1.2 or 0.1.3 or 0.1.4 or 0.1.5 or 0.1.6 or 0.1.7 from [...]
[14 more lines]

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:
Because ngx_dart >=9.0.0-dev.1 depends on ngx_compiler ^9.0.0-dev.1 which depends on analyzer ^6.5.0, ngx_dart >=9.0.0-dev.1 requires analyzer ^6.5.0.
    And because analyzer >=6.6.0 <6.9.0 depends on macros >=0.1.2-main.3 <0.1.3 and analyzer >=6.9.0 <7.3.0 depends on macros >=0.1.3-main.0 <0.1.4, ngx_dart >=9.0.0-dev.1 requires macros >=0.1.2[...]
(1) So, because macros >=0.1.3-main.0 depends on _macros 0.3.3 from sdk and analyzer >=6.5.2 <6.6.0 depends on macros >=0.1.2-main.0 <0.1.3, ngx_dart >=9.0.0-dev.1 requires _macros 0.3.3 from sdk[...]

    Because macros >=0.1.2-main.4 <0.1.3-main.0 depends on _macros 0.3.2 from sdk and macros >=0.1.2-main.2 <0.1.2-main.4 depends on _macros 0.3.1 from sdk, macros >=0.1.2-main.2 <0.1.3-main.0 re[...]
    And because macros >=0.1.2-main.0 <0.1.2-main.2 depends on _macros 0.3.0 from sdk, macros >=0.1.2-main.0 <0.1.3-main.0 requires _macros 0.3.0 or 0.3.1 or 0.3.2 from sdk.
    And because ngx_dart >=9.0.0-dev.1 requires _macros 0.3.3 from sdk or macros >=0.1.2-main.0 <0.1.3 or analyzer >=6.5.0 <6.5.2 (1), ngx_dart >=9.0.0-dev.1 requires _macros 0.3.0 or 0.3.1 or 0.[...]
    And because analyzer >=6.5.1 <6.5.2 depends on macros >=0.1.1-main.0 <0.1.2, ngx_dart >=9.0.0-dev.1 requires _macros 0.3.0 or 0.3.1 or 0.3.2 or 0.3.3 from sdk or macros >=0.1.1-main.0 <0.1.2-[...]
(2) So, because macros >=0.1.1-main.0 <0.1.2-main.0 depends on _macros 0.2.0 from sdk and analyzer >=6.5.0 <6.5.1 depends on macros >=0.1.0-main.0 <0.1.1, ngx_dart >=9.0.0-dev.1 requires _macros [...]

[11 more lines]

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.