After I changed 'inheritFromWidgetOfExactType' I started getting 3 distinct new errors

Question

The 3 new errors are:

Error: No named parameter with the name 'shadowThemeOnly'.

Context: Found this candidate, but the arguments don't match

Error: The getter 'addressOf' isn't defined for the class

This started when I got the original error of: Error: The method 'inheritFromWidgetOfExactType' isn't defined for the class 'BuildContext'

I followed the advice of

Error: The method 'inheritFromWidgetOfExactType' isn't defined for the class 'BuildContext'

and changed it to dependOnInheritedWidgetOfExactType.

However, the ONLY place I found this in was in my native_device_orientation.dart file. I used Visual Studio Code's search function and could not find any use of 'inheritFromWidgetOfExactType' .

I've done:

flutter clean

flutter pub get

flutter downgrade

flutter upgrade

I've even changed the channel; currently I'm using 'master'

All in various combinations.

The entirety of my error is listed below:

/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/dropdown_search-0.4.4/lib/src/popupMenu.dart:611:32: Error: No named parameter with the name 'shadowThemeOnly'.
      theme: Theme.of(context, shadowThemeOnly: true),
                               ^^^^^^^^^^^^^^^
/D:/Program%20Files/flutter/packages/flutter/lib/src/material/theme.dart:106:20: Context: Found this candidate, but the arguments don't match.
  static ThemeData of(BuildContext context) {
                   ^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/dropdown_search-0.4.4/lib/src/selectDialog.dart:153:7: Error: No named parameter with the name 'child'.        
      child: AlertDialog(
      ^^^^^
/D:/Program%20Files/flutter/packages/flutter/lib/src/material/dialog.dart:1065:12: Context: Found this candidate, but the arguments don't match.
Future<T?> showDialog<T>({
           ^^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider_windows-0.0.4+3/lib/src/path_provider_windows_real.dart:126:25: Error: The getter 'addressOf' isn't defined for the class 'GUID'.
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
          knownFolderID.addressOf, KF_FLAG_DEFAULT, NULL, pathPtrPtr);  
                        ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:1067:7: Error: The getter 'addressOf' isn't defined for the class 'LOGFONT'.
 - 'LOGFONT' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
      addressOf.cast<Uint8>().elementAt(28).cast<Utf16>();
      ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:1112:29: Error: The getter 'addressOf' isn't defined for the class 'ENUMLOGFONTEX'.
 - 'ENUMLOGFONTEX' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  LOGFONT get elfLogFont => addressOf.cast<LOGFONT>().ref;
                            ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:1114:29: Error: The getter 'addressOf' isn't defined for the class 'ENUMLOGFONTEX'.
 - 'ENUMLOGFONTEX' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  String get elfFullName => addressOf
                            ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:1120:26: Error: The getter 'addressOf' isn't defined for the class 'ENUMLOGFONTEX'.
 - 'ENUMLOGFONTEX' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  String get elfStyle => addressOf
                         ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:1126:27: Error: The getter 'addressOf' isn't defined for the class 'ENUMLOGFONTEX'.
 - 'ENUMLOGFONTEX' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  String get elfScript => addressOf
                          ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2688:7: Error: The getter 'addressOf' isn't defined for the class 'OSVERSIONINFO'.
 - 'OSVERSIONINFO' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
      addressOf.cast<Uint8>().elementAt(20).cast<Utf16>().unpackString(128);
      ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2699:11: Error: The getter 'addressOf' isn't defined for the class 'OSVERSIONINFO'.
 - 'OSVERSIONINFO' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        ..addressOf.cast<Uint8>().elementAt(20).value = 0;
          ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2744:24: Error: The getter 'addressOf' isn't defined for the class 'BLUETOOTH_DEVICE_INFO'.    
 - 'BLUETOOTH_DEVICE_INFO' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  String get szName => addressOf
                       ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2837:7: Error: The getter 'addressOf' isn't defined for the class 'BLUETOOTH_PIN_INFO'.        
 - 'BLUETOOTH_PIN_INFO' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
      addressOf.cast<Uint8>().elementAt(BTH_MAX_PIN_SIZE).value;
      ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2840:5: Error: The getter 'addressOf' isn't defined for the class 'BLUETOOTH_PIN_INFO'.        
 - 'BLUETOOTH_PIN_INFO' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
    addressOf.cast<Uint8>().elementAt(BTH_MAX_PIN_SIZE).value =
    ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2845:28: Error: The getter 'addressOf' isn't defined for the class 'BLUETOOTH_PIN_INFO'.       
 - 'BLUETOOTH_PIN_INFO' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
      String.fromCharCodes(addressOf.cast<Uint8>().asTypedList(pinLength));
                           ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2853:7: Error: The getter 'addressOf' isn't defined for the class 'BLUETOOTH_PIN_INFO'.        
 - 'BLUETOOTH_PIN_INFO' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
      addressOf.cast<Uint8>().elementAt(idx).value = pinData[idx];
      ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/com/combase.dart:38:31: Error: The getter 'addressOf' isn't defined for the class 'GUID'.
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  final iid = GUID.allocate().addressOf;
                              ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/com/combase.dart:56:33: Error: The getter 'addressOf' isn't defined for the class 'GUID'.
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  final clsid = GUID.allocate().addressOf;
                                ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/winrt/winrt_helpers.dart:86:40: Error: The getter 'addressOf' isn't defined for the class 'GUID'.
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  final riidCalendar = GUID.allocate().addressOf;
                                       ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IDesktopWallpaper.dart:197:38: Error: The getter 'addressOf' isn't defined for the class 'COMObject'.
 - 'COMObject' is from 'package:win32/src/com/combase.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/com/combase.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
    final ptr = COMObject.allocate().addressOf;
                                     ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IDesktopWallpaper.dart:200:49: Error: The getter 'addressOf' isn't defined for the class 'GUID'.  
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(CLSID_DesktopWallpaper).addressOf,
                                                ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IDesktopWallpaper.dart:203:48: Error: The getter 'addressOf' isn't defined for the class 'GUID'.
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(IID_IDesktopWallpaper).addressOf,
                                               ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IFileOpenDialog.dart:58:38: Error: The getter 'addressOf' isn't defined for the class 'COMObject'. - 'COMObject' is from 'package:win32/src/com/combase.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/com/combase.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
    final ptr = COMObject.allocate().addressOf;
                                     ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IFileOpenDialog.dart:61:47: Error: The getter 'addressOf' isn't defined for the class 'GUID'.     
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(CLSID_FileOpenDialog).addressOf,
                                              ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IFileOpenDialog.dart:64:46: Error: The getter 'addressOf' isn't defined for the class 'GUID'.     
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(IID_IFileOpenDialog).addressOf,
                                             ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IFileSaveDialog.dart:99:38: Error: The getter 'addressOf' isn't defined for the class 'COMObject'. - 'COMObject' is from 'package:win32/src/com/combase.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/com/combase.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
    final ptr = COMObject.allocate().addressOf;
                                     ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IFileSaveDialog.dart:102:47: Error: The getter 'addressOf' isn't defined for the class 'GUID'.    
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(CLSID_FileSaveDialog).addressOf,
                                              ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IFileSaveDialog.dart:105:46: Error: The getter 'addressOf' isn't defined for the class 'GUID'.    
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(IID_IFileSaveDialog).addressOf,
                                             ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IKnownFolderManager.dart:164:38: Error: The getter 'addressOf' isn't defined for the class 'COMObject'.
 - 'COMObject' is from 'package:win32/src/com/combase.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/com/combase.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
    final ptr = COMObject.allocate().addressOf;
                                     ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IKnownFolderManager.dart:167:51: Error: The getter 'addressOf' isn't defined for the class 'GUID'. - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(CLSID_KnownFolderManager).addressOf,
                                                  ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IKnownFolderManager.dart:170:50: Error: The getter 'addressOf' isn't defined for the class 'GUID'. - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(IID_IKnownFolderManager).addressOf,
                                                 ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/INetworkListManager.dart:128:38: Error: The getter 'addressOf' isn't defined for the class 'COMObject'.
 - 'COMObject' is from 'package:win32/src/com/combase.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/com/combase.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
    final ptr = COMObject.allocate().addressOf;
                                     ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/INetworkListManager.dart:131:51: Error: The getter 'addressOf' isn't defined for the class 'GUID'. - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(CLSID_NetworkListManager).addressOf,
                                                  ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/INetworkListManager.dart:134:50: Error: The getter 'addressOf' isn't defined for the class 'GUID'. - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        GUID.fromString(IID_INetworkListManager).addressOf,
                                                 ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IWbemLocator.dart:82:38: Error: The getter 'addressOf' isn't defined for the class 'COMObject'.   
 - 'COMObject' is from 'package:win32/src/com/combase.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/com/combase.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
    final ptr = COMObject.allocate().addressOf;
                                     ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IWbemLocator.dart:84:68: Error: The getter 'addressOf' isn't defined for the class 'GUID'.        
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
    final hr = CoCreateInstance(GUID.fromString(CLSID_WbemLocator).addressOf,
                                                                   ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/generated/IWbemLocator.dart:85:64: Error: The getter 'addressOf' isn't defined for the class 'GUID'.        
 - 'GUID' is from 'package:win32/src/structs.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
        nullptr, CLSCTX_ALL, GUID.fromString(IID_IWbemLocator).addressOf, ptr);
                                                               ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-0.1.3/lib/src/utf8.dart:63:33: Error: The getter 'addressOf' isn't defined for the class 'Utf8'.
 - 'Utf8' is from 'package:ffi/src/utf8.dart' ('/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-0.1.3/lib/src/utf8.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'addressOf'.
  String toString() => fromUtf8(addressOf);
                                ^^^^^^^^^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:1111:7: Error: Struct 'ENUMLOGFONTEX' is empty. Empty structs are undefined behavior.
class ENUMLOGFONTEX extends Struct {
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2835:7: Error: Struct 'BLUETOOTH_PIN_INFO' is empty. Empty structs are undefined behavior.     
class BLUETOOTH_PIN_INFO extends Struct {
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2960:7: Error: Struct 'EXCEPINFO' is empty. Empty structs are undefined behavior.
class EXCEPINFO extends Struct {}
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2966:7: Error: Struct 'PROPERTYKEY' is empty. Empty structs are undefined behavior.
class PROPERTYKEY extends Struct {}
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2973:7: Error: Struct 'PROPVARIANT' is empty. Empty structs are undefined behavior.
class PROPVARIANT extends Struct {}
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2978:7: Error: Struct 'SAFEARRAY' is empty. Empty structs are undefined behavior.
class SAFEARRAY extends Struct {}
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2985:7: Error: Struct 'CLSID' is empty. Empty structs are undefined behavior.
class CLSID extends Struct {}
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2992:7: Error: Struct 'STATSTG' is empty. Empty structs are undefined behavior.
class STATSTG extends Struct {}
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/win32-1.7.4/lib/src/structs.dart:2999:7: Error: Struct 'NLM_SIMULATED_PROFILE_INFO' is empty. Empty structs are undefined behavior.
class NLM_SIMULATED_PROFILE_INFO extends Struct {}
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-0.1.3/lib/src/utf8.dart:23:7: Error: Struct 'Utf8' is empty. Empty structs are undefined behavior.
class Utf8 extends Struct {
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-0.1.3/lib/src/utf16.dart:16:7: Error: Struct 'Utf16' is empty. Empty structs are undefined behavior.
class Utf16 extends Struct {
      ^
/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ffi-0.1.3/lib/src/allocation.dart:47:33: Error: Expected type 'T' to be a valid and instantiated subtype of 'NativeType'.
  final int totalSize = count * sizeOf<T>();
                                ^
                                                                        
                                                                        
FAILURE: Build failed with an exception.

* Where:
Script 'D:\Program Files\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1029

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDevDebug'.
> Process 'command 'D:\Program Files\flutter\bin\flutter.bat'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 16s
Running Gradle task 'assembleDebug'...                                  
Running Gradle task 'assembleDebug'... Done                        17.5s
Exception: Gradle task assembleDebug failed with exit code 1

UPDATE: March 20, 2021

I ran the following:

flutter pub upgrade

flutter pub outdated

flutter pub upgrade --major-versions

Now I'm getting :

rror: Error when reading '/D:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/camera_camera-2.0.0/lib/page/camera.dart': The system cannot find the path specified.

import 'package:camera_camera/page/camera.dart';
       ^
lib/repositories/auth_repository.dart:15:10: Error: Type 'FirebaseUser' not found.
  Future<FirebaseUser> get currentUser async => _firebaseAuth.currentUser();
         ^^^^^^^^^^^^
lib/repositories/firestore_repository.dart:14:3: Error: Type 'Firestore' not found.
  Firestore _firestore = Firestore.instance;
  ^^^^^^^^^

There are a bunch of other errors but they're mostly about Firestore not found.

Answer 1

1- Update all plugins or use the word 'any' instead of the plugin version , like this:

#shared_preferences: ^2.0.5
shared_preferences: any

2- Override path_provider , Copy these lines to pubspec.yaml file

dependency_overrides:
  # Override path_provider to pick up fixes for FFI changes.
  path_provider: ^2.0.0-nullsafety.1

3- run these commands :

flutter clean
flutter pub get

more info:https://github.com/flutter/flutter/issues/76129

Answer 2

I believe this will fix the problem:

Add to folder pubspec.yaml

dependencies:
  ffi: ^1.0.0

Answer 3

This might be a cache-related issue.

Delete the following:

• .idea
• build
• pubspec-lock

Then run:

• flutter clean
• flutter pub get