问题描述
Json serilizable无法正常工作，我该如何解决这个错误呢。我用Flutter build_runner：^ 1.7.2 json_serializable：^ 3.4.1 分析器：^ 0.39.17 json_annotation：^ 3.0.1不是单个文件正在创建json
Json serilizable无法正常工作，我该如何解决这个错误呢。我用Flutter build_runner：^ 1.7.2 json_serializable：^ 3.4.1 分析器：^ 0.39.17 json_annotation：^ 3.0.1不是单个文件正在创建json
import 'package:dance/models/tutorials-model/video-data.dart';
import 'package:json_annotation/json_annotation.dart';
part 'Metadata.g.dart';
@JsonSerializable()
class MetaData {
final String category;
final String categoryId;
final List<VideoData> data;
MetaData(this.category,this.categoryId,this.data);
factory MetaData.fromJson(Map<String,dynamic> json) => _$MetaDataFromJson(json);
Map<String,dynamic> toJson() => _$MetaDataToJson(this);
}
------------------------terminal------------------------
Flutter pub run build_runner watch
[INFO] Running build...
[INFO] Generating SDK summary...
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[SEVERE] json_serializable:json_serializable on test/widget_test.dart:
Bad state: Unexpected diagnostics:
C:\Users\Admin\Desktop\Flutter-dart\Flutter\bin\cache\dart-sdk\lib\core\uri.dart:3259:39 - Expected an identifier.
[INFO] 2.3s elapsed,1/17 actions completed.
[INFO] 3.4s elapsed,1/17 actions completed.
[INFO] 4.4s elapsed,1/17 actions completed.
[INFO] 5.4s elapsed,1/17 actions completed.
[INFO] 6.4s elapsed,1/17 actions completed.
[INFO] 7.4s elapsed,1/17 actions completed.
[INFO] 8.4s elapsed,1/17 actions completed.
[INFO] 9.4s elapsed,1/17 actions completed.
[INFO] 10.5s elapsed,1/17 actions completed.
[INFO] 11.5s elapsed,1/17 actions completed.
[INFO] 12.5s elapsed,1/17 actions completed.
[INFO] 13.5s elapsed,1/17 actions completed.
[INFO] 14.5s elapsed,1/17 actions completed.
[INFO] 15.5s elapsed,1/17 actions completed.
[WARNING] No actions completed for 15.0s,waiting on:
- json_serializable:json_serializable on lib/constants/constants.dart
- json_serializable:json_serializable on lib/constants/key_provider.dart
- json_serializable:json_serializable on lib/constants/routes_name.dart
- json_serializable:json_serializable on lib/constants/url_provider.dart
- json_serializable:json_serializable on lib/extension/string_extension.dart
.. and 11 more
解决方法
我遇到了类似的冻结问题。 可以通过指定软件包来解决。
dependencies:
analyzer: ^0.39.14 <- This
dev_dependencies:
build_runner: ^1.10.0 <- This
在重建之前清理
# delete pubspec.lock
$ rm -rf pubspec.lock
# clean
$ flutter clean