title: Error after upgrading Flutter in the dev channel, getter X isn't defined for the class X
body: <p>My Flutter project was working as usual until one day I decided to execute &quot;flutter upgrade&quot; 1 month ago and then every time I execute &quot;flutter run&quot;, an error message is shown.</p>
  <p>• I tried:</p>
  <ul>
  <li>Change to stable channel.</li>
  <li>Execute &quot;Flutter clean&quot;.</li>
  </ul>
  <p>• I'm in the dev channel and this is my &quot;flutter doctor&quot;:</p>
  <pre><code>Doctor summary (to see all details, run flutter doctor -v):
  [√] Flutter (Channel dev, 2.1.0-12.1.pre, on Microsoft Windows [VersiÃ³n 10.0.19041.867], locale en-US)
  [√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
  [X] Chrome - develop for the web (Cannot find Chrome executable at .\Google\Chrome\Application\chrome.exe)
      ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
  [√] Android Studio (version 4.1.0)
  [√] Connected device (2 available)
  
  ! Doctor found issues in 1 category.
  
  </code></pre>
  <p>• This is the error message in the console when I open the emulator and then execute &quot;flutter run&quot;:</p>
  <pre><code>C:\Users\USER\AndroidStudioProjects\my_apps\soto_2021&gt;flutter run
  Using hardware rendering with device Android SDK built for x86. If you notice graphics artifacts, consider enabling
  software rendering with &quot;--enable-software-rendering&quot;.
  Launching lib\main.dart on Android SDK built for x86 in debug mode...
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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);
                          ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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&lt;Uint8&gt;().elementAt(28).cast&lt;Utf16&gt;();
        ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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 =&gt; addressOf.cast&lt;LOGFONT&gt;().ref;
                              ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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 =&gt; addressOf
                              ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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 =&gt; addressOf
                           ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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 =&gt; addressOf
                            ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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&lt;Uint8&gt;().elementAt(20).cast&lt;Utf16&gt;().unpackString(128);
        ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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&lt;Uint8&gt;().elementAt(20).value = 0;
            ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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 =&gt; addressOf
                         ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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&lt;Uint8&gt;().elementAt(BTH_MAX_PIN_SIZE).value;
        ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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&lt;Uint8&gt;().elementAt(BTH_MAX_PIN_SIZE).value =
      ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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&lt;Uint8&gt;().asTypedList(pinLength));
                             ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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&lt;Uint8&gt;().elementAt(idx).value = pinData[idx];
        ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                  ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                         ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                       ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                  ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                 ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                       ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                               ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                       ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                               ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                       ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                    ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                   ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                       ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                    ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                   ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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;
                                       ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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,
                                                                     ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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);
                                                                 ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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' ('../../../Downloads/Aplicaci%C3%B3n/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() =&gt; fromUtf8(addressOf);
                                  ^^^^^^^^^
  ../../../Downloads/Aplicaci%C3%B3n/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 {
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {}
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {}
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {}
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {}
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {}
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {}
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {}
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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 {
        ^
  ../../../Downloads/Aplicaci%C3%B3n/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&lt;T&gt;();
                                  ^
  
  
  FAILURE: Build failed with an exception.
  
  * Where:
  Script 'C:\Users\USER\Downloads\Aplicaci�n\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1029
  
  * What went wrong:
  Execution failed for task ':app:compileFlutterBuildDebug'.
  &gt; Process 'command 'C:\Users\USER\Downloads\Aplicaci�n\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 8m 51s
  Running Gradle task 'assembleDebug'...
  Running Gradle task 'assembleDebug'... Done                       543.5s
  Exception: Gradle task assembleDebug failed with exit code 1
  </code></pre>