Flutter Channel渠道撵彻，更新Flutter SDK

flutter? --version? 列出所有版本

flutter channel 列出當(dāng)前所有渠道穩(wěn)定版钓株，開發(fā)版等? 和目前所在的渠道版本

master? ? ? ? ? ?為當(dāng)前最新的channel；

dev? ? ? ? ? ? ? ??為當(dāng)前最新且充分測試后的channel陌僵；

beta? ? ? ? ? ? ??為每月Flutter官方調(diào)整選出來的最好的dev的channel轴合；

stable? ? ? ? ? ??為當(dāng)前最穩(wěn)定的channel。

穩(wěn)定性排序：master < dev < beta < stable?

更新Flutter SDK

在命令行中運(yùn)行命令：“flutter upgrade --force”碗短。?

有的小伙伴用“flutter upgrade”?可能會報(bào)錯受葛。所以這里推薦用強(qiáng)制更新。

耐心等待大約10分鐘偎谁，當(dāng)出現(xiàn)下面界面的時候总滩，說明更新完了。

更新后巡雨，運(yùn)行項(xiàng)目闰渔，很奇怪報(bào)了錯誤信息，錯誤信息如下：

Running Gradle task 'assembleDebug'...

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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);

? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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>();

? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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

? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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

? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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

? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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);

? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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

? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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 =

? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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));

? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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];

? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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;

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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,

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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);

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/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' ('../../../../../../.pub-cache/hosted/pub.flutter-io.cn/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);

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ^^^^^^^^^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/lib/src/structs.dart:1111:7: Error: Struct 'ENUMLOGFONTEX' is empty. Empty structs are undefined behavior.

class ENUMLOGFONTEX extends Struct {

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/lib/src/structs.dart:2835:7: Error: Struct 'BLUETOOTH_PIN_INFO' is empty. Empty structs are undefined behavior.

class BLUETOOTH_PIN_INFO extends Struct {

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/lib/src/structs.dart:2960:7: Error: Struct 'EXCEPINFO' is empty. Empty structs are undefined behavior.

class EXCEPINFO extends Struct {}

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/lib/src/structs.dart:2966:7: Error: Struct 'PROPERTYKEY' is empty. Empty structs are undefined behavior.

class PROPERTYKEY extends Struct {}

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/lib/src/structs.dart:2973:7: Error: Struct 'PROPVARIANT' is empty. Empty structs are undefined behavior.

class PROPVARIANT extends Struct {}

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/lib/src/structs.dart:2978:7: Error: Struct 'SAFEARRAY' is empty. Empty structs are undefined behavior.

class SAFEARRAY extends Struct {}

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/lib/src/structs.dart:2985:7: Error: Struct 'CLSID' is empty. Empty structs are undefined behavior.

class CLSID extends Struct {}

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/lib/src/structs.dart:2992:7: Error: Struct 'STATSTG' is empty. Empty structs are undefined behavior.

class STATSTG extends Struct {}

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/win32-1.7.4+1/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 {}

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/ffi-0.1.3/lib/src/utf8.dart:23:7: Error: Struct 'Utf8' is empty. Empty structs are undefined behavior.

class Utf8 extends Struct {

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/ffi-0.1.3/lib/src/utf16.dart:16:7: Error: Struct 'Utf16' is empty. Empty structs are undefined behavior.

class Utf16 extends Struct {

? ? ? ^

../../../../../../.pub-cache/hosted/pub.flutter-io.cn/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 '/Users/cheryl/Documents/work/sdk/flutter_sdk/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 1035

* What went wrong:

Execution failed for task ':app:compileFlutterBuildDebug'.

> Process 'command '/Users/cheryl/Documents/work/sdk/flutter_sdk/flutter/bin/flutter'' 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 12s

Exception: Gradle task assembleDebug failed with exit code 1


我在網(wǎng)上嘗試了好多種解決方法

首先清除緩存：?flutter clean

如果不行铐望，使用：flutter packages cache repair

結(jié)果嘗試好多遍依舊不行冈涧，報(bào)錯向挖，后來重啟項(xiàng)目，錯誤信息沒有了炕舵，項(xiàng)目可以運(yùn)行了何之，很奇怪。

?著作權(quán)歸作者所有,轉(zhuǎn)載或內(nèi)容合作請聯(lián)系作者
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