it doesn't work when I try to upload an image to the firebase storage in the simulator

[yueyh-123]

I am new at flutter and would thanks a lot for your help.
** upload a image from simulator to firebase: **

class CloudStorageService{
  final FirebaseStorage _storage = FirebaseStorage.instance;
  
  CloudStorageService(){}

  Future<String?> saveUserImageToStorage( String _uid, PlatformFile _file) async {
    try {
      Reference _ref = 
          _storage.ref().child('images/users/$_uid/profile.${_file.extension}');
    
      UploadTask _task = _ref.putFile(
        File(_file.path),
      );
      return await _task.then(
        (_result) => _result.ref.getDownloadURL(),
      );
    } catch (e) {
      print(e);
    }
  }

try to print some variables in above class CloudStorageService

call the method saveUserImageToStorage( ) in another class

of course, the image isn't upload to the firebase storage successfully.

[yueyh-123]

flutter doctor

flutter pub deps -- --style=compact

PS D:\TempStore\Code\flutterDemo\chart_app> flutter pub deps -- --style=compact
Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this
source!
Dart SDK 2.16.1   
Flutter SDK 2.10.3
chart_app 1.0.0+1 

dependencies:
- cloud_firestore 2.5.1 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta]
- cupertino_icons 1.0.4
- file_picker 4.0.1 [flutter flutter_web_plugins flutter_plugin_android_lifecycle plugin_platform_interface ffi path]
- firebase_analytics 8.0.4 [firebase_analytics_platform_interface firebase_analytics_web firebase_core flutter meta]
- firebase_auth 3.1.0 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta]
- firebase_core 1.6.0 [firebase_core_platform_interface firebase_core_web flutter meta]        
- firebase_storage 10.0.3 [firebase_core firebase_core_platform_interface firebase_storage_platform_interface firebase_storage_web flutter]
- flutter 0.0.0 [characters collection material_color_utilities meta typed_data vector_math sky_engine]
- flutter_keyboard_visibility 5.0.3 [meta flutter_keyboard_visibility_platform_interface flutter_keyboard_visibility_web flutter]
- flutter_spinkit 5.1.0 [flutter]
- get_it 7.2.0 [async collection]
- image_picker 0.8.0 [flutter flutter_plugin_android_lifecycle image_picker_platform_interface 
image_picker_for_web]
- provider 6.0.0 [collection flutter nested]
- timeago 3.1.0

dev dependencies:
- flutter_lints 1.0.4 [lints]
- flutter_test 0.0.0 [flutter test_api path fake_async clock stack_trace vector_math async boolean_selector characters charcode collection matcher material_color_utilities meta source_span stream_channel string_scanner term_glyph typed_data]

transitive dependencies:
- async 2.8.2 [collection meta]
- boolean_selector 2.1.0 [source_span string_scanner]
- characters 1.2.0
- charcode 1.3.1
- clock 1.1.0
- cloud_firestore_platform_interface 5.4.1 [collection firebase_core flutter meta plugin_platform_interface]
- cloud_firestore_web 2.4.2 [cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins js]
- collection 1.15.0
- cross_file 0.3.2 [flutter js meta]
- fake_async 1.2.0 [clock collection]
- ffi 1.1.2
- firebase 9.0.2 [http http_parser js]
- firebase_analytics_platform_interface 2.0.1 [flutter meta]
- firebase_analytics_web 0.3.0+1 [firebase firebase_analytics_platform_interface flutter flutter_web_plugins meta]
- firebase_auth_platform_interface 6.1.0 [firebase_core flutter meta plugin_platform_interface]- firebase_auth_web 3.1.0 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser intl js meta]
- firebase_core_platform_interface 4.2.5 [collection flutter meta plugin_platform_interface]   
- firebase_core_web 1.6.1 [firebase_core_platform_interface flutter flutter_web_plugins js meta]
- firebase_storage_platform_interface 4.0.2 [collection firebase_core flutter meta plugin_platform_interface]
- firebase_storage_web 3.0.2 [async firebase_core firebase_core_web firebase_storage_platform_interface flutter flutter_web_plugins http js meta]
- flutter_keyboard_visibility_platform_interface 2.0.0 [flutter meta plugin_platform_interface]- flutter_keyboard_visibility_web 2.0.0 [flutter_keyboard_visibility_platform_interface flutter_web_plugins flutter]
- flutter_plugin_android_lifecycle 2.0.5 [flutter]
- flutter_web_plugins 0.0.0 [flutter js characters collection material_color_utilities meta typed_data vector_math]
- http 0.13.4 [async http_parser meta path]
- http_parser 4.0.0 [charcode collection source_span string_scanner typed_data]
- image_picker_for_web 2.1.6 [flutter flutter_web_plugins image_picker_platform_interface]     
- image_picker_platform_interface 2.4.4 [cross_file flutter http plugin_platform_interface]    
- intl 0.17.0 [clock path]
- js 0.6.3
- lints 1.0.1
- matcher 0.12.11 [stack_trace]
- material_color_utilities 0.1.3
- meta 1.7.0
- nested 1.0.0 [flutter]
- path 1.8.0
- plugin_platform_interface 2.1.2 [meta]
- sky_engine 0.0.99
- source_span 1.8.1 [collection path term_glyph]
- stack_trace 1.10.0 [path]
- stream_channel 2.1.0 [async]
- string_scanner 1.1.0 [charcode source_span]
- term_glyph 1.2.0
- test_api 0.4.8 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph matcher]
- typed_data 1.3.0 [collection]
- vector_math 2.1.1