问题：Logger.onLevelChanged #65
Description
Failed to build json_model:json_model:
../../AppData/Local/Pub/Cache/hosted/pub.flutter-io.cn/build_runner_core-7.2.2/lib/src/logging/build_for_input_logger.dart:13:7: Error: The non-abstract class 'BuildForInputLogger' is missing implementations for th
ese members:
- Logger.onLevelChanged
Try to either - provide an implementation,
- inherit an implementation from a superclass or mixin,
- mark the class as abstract, or
- provide a 'noSuchMethod' implementation.
class BuildForInputLogger implements Logger {
^^^^^^^^^^^^^^^^^^^
../../AppData/Local/Pub/Cache/hosted/pub.flutter-io.cn/logging-1.2.0/lib/src/logger.dart:162:22: Context: 'Logger.onLevelChanged' is defined here.
Stream<Level?> get onLevelChanged {
^^^^^^^^^^^^^^
../../AppData/Local/Pub/Cache/hosted/pub.flutter-io.cn/build_runner-2.1.11/lib/src/build_script_generate/bootstrap.dart:76:40: Error: Method not found: 'NullThrownError'.
final error = e[0] as Object? ?? NullThrownError();