flutter - 请我在运行我的颤振模拟器时遇到问题

Question

C:/Mobile/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter_platform_interface-2.0.0/lib/src/method_channel/method_channel_google_maps_flutter.dart:14:8：错误：读取'/C:/时出错mobile/flutter/.pub-cache/hosted/pub.dartlang.org/stream_transform-2.0.0/lib/stream_transform.dart'：系统找不到指定的路径。

导入“包：stream_transform/stream_transform.dart”；^

/C:/Mobile/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter_platform_interface-2.0.0/lib/src/method_channel/method_channel_google_maps_flutter.dart:96:27：错误：方法'whereType'是' t 为类“Stream<MapEvent>”定义。

• “流”来自“飞镖：异步”。
• 'MapEvent' 来自 'package:google_maps_flutter_platform_interface/src/events/map_event.dart' ('/C:/Mobile/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter_platform_interface-2.0.0/lib/src /events/map_event.dart'）。尝试将名称更正为现有方法的名称，或定义名为“whereType”的方法。返回 _events(mapId).whereType(); ^^^^^^^^^ /C:/Mobile/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter_platform_interface-2.0.0/lib/src/method_channel/method_channel_google_maps_flutter.dart:101:27:错误：没有为类“Stream<MapEvent>”定义方法“whereType”。
• “流”来自“飞镖：异步”。
• 'MapEvent' 来自 'package:google_maps_flutter_platform_interface/src/events/map_event.dart' ('/C:/Mobile/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter_platform_interface-2.0.0/lib/src /events/map_event.dart'）。尝试将名称更正为现有方法的名称，或定义名为“whereType”的方法。返回 _events(mapId).whereType(); ^^^^^^^^^ /C:/Mobile/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter_platform_interface-2.0.0/lib/src/method_channel/method_channel_google_maps_flutter.dart:106:27:错误：没有为类“Stream<MapEvent>”定义方法“whereType”。
• “流”来自“飞镖：异步”。
• 'MapEvent' 来自 'package:google_maps_flutter_platform_interface/src/events/map_event.dart' ('/C:/Mobile/flutter/.pub-cache/hosted/pub.dartlang.org/google_maps_flutter_platform_interface-2.0.0/lib/src /events/map_event.dart'）。尝试将名称更正为现有方法的名称，或定义名为“whereType”的方法。返回 _events(mapId).whereType(); ^^^^^^^^^

标签： fluttergoogle-maps-flutter