Freezed: 1.22 compatibility

[matiasosuna]

Description
Freezed wont generate files after 1.22 release and gets into an infinite processing loop.
Also, multiple errors on non-nullable feature are shown.

Bad state: Unexpected diagnostics: C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:152:17 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:119:41 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:133:32 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:186:51 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:88:62 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:153:38 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:64:4 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:154:25 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:18:17 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:118:48 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:132:37 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:19:11 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:159:38 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:168:32 - This requires the 'non-nullable' language feature to be enabled. C:\src\flutter\bin\cache\pkg\sky_engine\lib\ui\channel_buffers.dart:47:14 - This requires the 'non-nullable' language feature to be enabled.

To Reproduce
Update to 1.22 and try to run freezed build

[rrousselGit]

The build is passing on stable https://github.com/rrousselGit/freezed/runs/1208517431?check_suite_focus=true

Make sure to run flutter pub upgrade

[matiasosuna]

Thanks for the quick response.

The link you provided was useful to notice that I should not use the most recent build_runner (1.10.3), but 1.10.2.
I still dont know why when I downgraded flutter to 1.20.4, freezed generator worked propperly, but nevermind, this solved it.

I post this for anyone having my same issue.

Thank you!

[danilofuchs]

I am having the same issue with Flutter 1.22.0 as well.
I am using build_runner 1.10.2

[SEVERE] freezed:freezed on lib/main_prod.dart:

Bad state: Unexpected diagnostics:
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:152:17 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:119:41 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:133:32 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:186:51 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:88:62 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:153:38 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:64:4 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:154:25 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:18:17 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:118:48 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:132:37 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:19:11 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:159:38 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:168:32 - This requires the 'non-nullable' language feature to be enabled.
/Users/danilo.fuchs/flutter/bin/cache/pkg/sky_engine/lib/ui/channel_buffers.dart:47:14 - This requires the 'non-nullable' language feature to be enabled.

The build hangs after a while:

[INFO] 1m 44s elapsed, 2/18 actions completed.
[INFO] 1m 45s elapsed, 2/18 actions completed.
[INFO] 1m 46s elapsed, 2/18 actions completed.
[INFO] 1m 47s elapsed, 2/18 actions completed.
[WARNING] No actions completed for 15.1s, waiting on:
  - freezed:freezed on lib/main_stg.dart
  - freezed:freezed on lib/main.dart
  - freezed:freezed on lib/env/env_staging.g.dart
  - freezed:freezed on lib/env/config_stg.dart
  - freezed:freezed on lib/env/env_prod.g.dart
  .. and 11 more

[INFO] 1m 48s elapsed, 2/18 actions completed.
[INFO] 1m 49s elapsed, 2/18 actions completed.
[INFO] 1m 50s elapsed, 2/18 actions completed.
[INFO] 1m 51s elapsed, 2/18 actions completed.

[niwatly]

Same issue, but solved by fixing analyzer version to 0.39.17.

dev_dependencies:
  build_runner: 1.10.2
  analyzer: ^0.39.17