Flutter 升级 v3.13 后运行当前项目时出错

Question

Flutter 升级 v3.13 后运行当前项目时出错

在 flutter upgrade v3.13 之后，我在我的 vscode 调试控制台中收到以下错误运行项目：

Invalid depfile: C:\Users\DIMAS\FlutterCode\skip\.dart_tool\flutter_build\35269fa8986c9ee7a9c97697217003ec\kernel_snapshot.d
Invalid depfile: C:\Users\DIMAS\FlutterCode\skip\.dart_tool\flutter_build\35269fa8986c9ee7a9c97697217003ec\kernel_snapshot.d
Error: Could not resolve the package 'characters' in 'package:characters/characters.dart'.
/C:/src/flutter/packages/flutter/lib/src/material/text_field.dart:9:8: Error: Not found: 'package:characters/characters.dart'
import 'package:characters/characters.dart';
       ^
/C:/src/flutter/packages/flutter/lib/widgets.dart:18:1: Error: Not found: 'package:characters/characters.dart'
export 'package:characters/characters.dart';
^
/C:/src/flutter/packages/flutter/lib/src/rendering/editable.dart:10:8: Error: Not found: 'package:characters/characters.dart'
import 'package:characters/characters.dart';
       ^
/C:/src/flutter/packages/flutter/lib/src/services/text_formatter.dart:9:8: Error: Not found: 'package:characters/characters.dart'
import 'package:characters/characters.dart';
       ^
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:88:26: Error: Type 'DiagnosticableMixin' not found.
class PictureStream with DiagnosticableMixin {
                         ^^^^^^^^^^^^^^^^^^^
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:192:44: Error: Type 'DiagnosticableMixin' not found.
abstract class PictureStreamCompleter with DiagnosticableMixin {
                                           ^^^^^^^^^^^^^^^^^^^
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:88:7: Error: The type 'DiagnosticableMixin' can't be mixed in.
class PictureStream with DiagnosticableMixin {
      ^
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:192:16: Error: The type 'DiagnosticableMixin' can't be mixed in.
abstract class PictureStreamCompleter with DiagnosticableMixin {
               ^
/C:/src/flutter/packages/flutter/lib/src/material/text_field.dart:822:61: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
  int get _currentLength => _effectiveController.value.text.characters.length;
                                                            ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/material/text_field.dart:824:118: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
  bool get _hasIntrinsicError => widget.maxLength != null && widget.maxLength > 0 && _effectiveController.value.text.characters.length > widget.maxLength;
                                                                                                                     ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/rendering/editable.dart:244:64: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
       assert(obscuringCharacter != null && obscuringCharacter.characters.length == 1),
                                                               ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/rendering/editable.dart:361:35: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
    assert(value != null && value.characters.length == 1);
                                  ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/rendering/editable.dart:567:11: Error: 'Characters' isn't a type.
    final Characters remaining = string.characters.skipWhile((String currentString) {
          ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/rendering/editable.dart:567:41: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
    final Characters remaining = string.characters.skipWhile((String currentString) {
                                        ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/rendering/editable.dart:600:47: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
    for (final String currentString in string.characters) {
                                              ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/rendering/editable.dart:602:40: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
          !_isWhitespace(currentString.characters.first.toString().codeUnitAt(0))) {
                                       ^^^^^^^^^^
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:167:11: Error: Superclass has no method named 'debugFillProperties'.
    super.debugFillProperties(properties);
          ^^^^^^^^^^^^^^^^^^^
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:171:30: Error: The method 'toStringShort' isn't defined for the class 'PictureStreamCompleter'.
 - 'PictureStreamCompleter' is from 'package:flutter_svg/src/picture_stream.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart').
Try correcting the name to the name of an existing method, or defining a method named 'toStringShort'.
      ifPresent: _completer?.toStringShort(),
                             ^^^^^^^^^^^^^
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:266:11: Error: Superclass has no method named 'debugFillProperties'.
    super.debugFillProperties(description);
          ^^^^^^^^^^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/services/text_formatter.dart:355:11: Error: 'CharacterRange' isn't a type.
    final CharacterRange iterator = CharacterRange(value.text);
          ^^^^^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/services/text_formatter.dart:355:37: Error: Method not found: 'CharacterRange'.
    final CharacterRange iterator = CharacterRange(value.text);
                                    ^^^^^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/services/text_formatter.dart:356:20: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
    if (value.text.characters.length > maxLength) {
                   ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/services/text_formatter.dart:375:61: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
    if (maxLength != null && maxLength > 0 && newValue.text.characters.length > maxLength) {
                                                            ^^^^^^^^^^
/C:/src/flutter/packages/flutter/lib/src/services/text_formatter.dart:378:25: Error: The getter 'characters' isn't defined for the class 'String'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'characters'.
      if (oldValue.text.characters.length == maxLength) {
                        ^^^^^^^^^^

Unhandled exception:
FileSystemException(uri=org-dartlang-untransla
table-uri:package%3Acharacters%2Fcharacters.dart; message=StandardFileSystem only supports file:* and data:* URIs)
[38;5;248m#0      StandardFileSystem.entityForUri  (package:front_end/src/api_prototype/standard_file_system.dart:33:7)[39;49m

[38;5;248m#1      asFileUri  (package:vm/kernel_front_end.dart:659:37)[39;49m
[38;5;248m#2      writeDepfile  (package:vm/kernel_front_end.dart:853:21)[39;49m
<asynchronous suspen
sion>
[38;5;248m#3      FrontendCompiler.compile  (package:frontend_server/frontend_server.dart:574:15)[39;49m
[38;5;244m<asynchronous suspension>[39;49m
#4      _FlutterFrontendCompiler.compile (packa
ge:flutter_frontend_server/server.dart:43:22)
[38;5;248m#5      starter  (package:flutter_frontend_server/server.dart:182:27)[39;49m

#6      main (file:///C:/b/s/w/ir/cache/builder/src/flut
ter/flutter_frontend_server/bin/starter.dart:9:30)
[38;5;244m#7      _startIsolate.<anonymous closure>  (dart:isolate-patch/isolate_patch.dart:299:32)[39;49m
#8      _RawReceivePortImpl
._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

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FAILURE：构建失败，出现异常。