麻烦问一下，上传报错的问题

[ProfessionalMe]

我的DIO版本号是： dio: ^5.2.1+1 sdk是：0.5.0 上传图片提示这个错，但是不影响上传。

[🔔 Dio] _MultiStream<List<int>> cannot be used to imply a default content-type, please set a proper content-type in the request. #0 ImplyContentTypeInterceptor.onRequest (package:dio/src/interceptors/imply_content_type.dart:45:36) #1 DioMixin.fetch.requestInterceptorWrapper.<anonymous closure>.<anonymous closure> (package:dio/src/dio_mixin.dart:385:26) #2 new Future.<anonymous closure> (dart:async/future.dart:256:37) #3 Timer._createTimer.<anonymous closure> (dart:async-patch/timer_patch.dart:18:15) #4 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19) #5 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5) #6 _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:189:12) [🔔 Dio] _MultiStream<List<int>> cannot be used to imply a default content-type, please set a proper content-type in the request. #0 ImplyContentTypeInterceptor.onRequest (package:dio/src/interceptors/imply_content_type.dart:45:36) #1 DioMixin.fetch.requestInterceptorWrapper.<anonymous closure>.<anonymous closure> (package:dio/src/dio_mixin.dart:385:26) #2 new Future.<anonymous closure> (dart:async/future.dart:256:37) #3 Timer._createTimer.<anonymous closure> (dart:async-patch/timer_patch.dart:18:15) #4 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19) #5 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5) #6 _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:189:12)