Cannot compile time_machine on with latest flutter stable channel 1.22.6

[degloff]

I cannot build with latest flutter stable channel 1.22.6, neither with the version 0.9.16 nor with the master branch

../../../development/flutter/.pub-cache/git/time_machine-7fbfd2fc84fd8ee6a6be4cf16e429d64d3a4df3f/lib/src/calendar_system.dart:8:2: Error: Getter not found: 'internal'.
@internal
 ^^^^^^^^
../../../development/flutter/.pub-cache/git/time_machine-7fbfd2fc84fd8ee6a6be4cf16e429d64d3a4df3f/lib/src/calendar_system.dart:8:2: Error: This can't be used as metadata; metadata should be a reference to a compile-time constant variable, or a call to a constant constructor.
@internal
 ^
../../../development/flutter/.pub-cache/git/time_machine-7fbfd2fc84fd8ee6a6be4cf16e429d64d3a4df3f/lib/src/zoneddatetime.dart:18:2: Error: Getter not found: 'internal'.
@internal
 ^^^^^^^^

....

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 1.22.6, on Mac OS X 10.15.7 19H114 darwin-x64, locale en-CH)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 12.4)

Tried the following versions

  #time_machine: ^0.9.16
  time_machine:
    git:
      url: https://github.com/Dana-Ferguson/time_machine

Many thanks for suggestions to fix it.

[rich-j]

@degloff, you will probably need to specify version time_machine: 0.9.15 for compatibility with the current stable channel. The 0.9.16 release includes a fix for #44 that uses a new @internal attribute from meta that wasn't previously available.

[degloff]

I tried your suggestion by locking the version to 0.9.15. Seems to work. Thank you very much @rich-j .