Fails to generate files

[timosturm]

Generating files fails when running the build command.

flutter --version:

Flutter 1.20.4 • channel stable • https://github.com/flutter/flutter.git
Framework • revision fba99f6cf9 (34 hours ago) • 2020-09-14 15:32:52 -0700
Engine • revision d1bc06f032
Tools • Dart 2.9.2

Dependencies:

dependencies:
  ...
  json_annotation: ^3.0.1

dev_dependencies:
  ...
  build_runner: any
  json_serializable: ^3.4.0

Output of flutter pub run build_runner build:

$ flutter pub run build_runner build
Precompiling executable...
Precompiled build_runner:build_runner.
[INFO] Generating build script...
[INFO] Generating build script completed, took 283ms

[INFO] Creating build script snapshot......
[INFO] Creating build script snapshot... completed, took 10.7s

[INFO] Initializing inputs
[INFO] Building new asset graph...
[INFO] Building new asset graph completed, took 582ms

[INFO] Checking for unexpected pre-existing outputs....
[INFO] Checking for unexpected pre-existing outputs. completed, took 1ms

[INFO] Running build...
[INFO] Generating SDK summary...
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:
  # dependencies to serialize objects to json
Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/utils/parsing_utils.test.dart:

Bad state: Unexpected diagnostics:
/home/timo/development/flutter/bin/cache/dart-sdk/lib/core/uri.dart:3259:39 - Expected an identifier.
[INFO] 1.5s elapsed, 1/17 actions completed.
[INFO] 2.6s elapsed, 1/17 actions completed.
[INFO] 3.7s elapsed, 1/17 actions completed.
[INFO] 4.8s elapsed, 1/17 actions completed.
[INFO] 5.9s elapsed, 1/17 actions completed.
[INFO] 7.0s elapsed, 1/17 actions completed.
[INFO] 8.1s elapsed, 1/17 actions completed.
[INFO] 9.2s elapsed, 1/17 actions completed.
[INFO] 10.3s elapsed, 1/17 actions completed.
[INFO] 11.4s elapsed, 1/17 actions completed.
[INFO] 12.5s elapsed, 1/17 actions completed.
[INFO] 13.6s elapsed, 1/17 actions completed.
[INFO] 14.7s elapsed, 1/17 actions completed.
[WARNING] No actions completed for 15.1s, waiting on:
  - json_serializable:json_serializable on test/utils/utils_test.dart
  - json_serializable:json_serializable on test/utils/crypto_utils_test.dart
  - json_serializable:json_serializable on test/model/token_test.dart
  - json_serializable:json_serializable on lib/l10n/messages_de.dart
  - json_serializable:json_serializable on lib/l10n/messages_en.dart
  .. and 11 more

This message will then be repeated infinitely.
I do not understand why the process is waiting for some test files?

[hashemlou]

hi
i guess this bug related to incompatible library version in flutter version

[soile1991]

I had the same problem and it worked as expected when I used build_runner: ^1.10.1

dependencies:
  ...
  json_annotation: ^3.0.1

dev_dependencies:
  ...
  build_runner: ^1.10.1
  json_serializable: ^3.4.1

[timosturm]

I had the same problem and it worked as expected when I used build_runner: ^1.10.1

dependencies:
  ...
  json_annotation: ^3.0.1

dev_dependencies:
  ...
  build_runner: ^1.10.1
  json_serializable: ^3.4.1

It seems to be a problem with build_runner version 1.10.0, using 1.10.1 fixes the problem.

[ininmm]

I think this issue is related to the dart sdk.

see: dart-lang/build#2763

[kevmoo]

Yup @ininmm – closing as a duplicate.