Android studio 中的应用程序一切正常，我在其他地方进行更改，因此我对 Android studio 代码完全没有进行任何更改。然后我重新启动计算机，Android Studio 说它已更新，它说“IDE 已通过快照更新”，没有其他信息。
现在，在更新 IDE 后，我的应用程序不再运行。
我不知道从哪里开始寻找解决方案，有人有任何想法吗？
我什至不知道要研究什么。
我得到了大量的长错误输出。
Running Gradle task 'assembleDebug'...
../../snap/flutter/common/flutter/packages/flutter/lib/src/widgets/routes.dart:342:82: Error: A value of type 'Animation<double>?' can't be assigned to a variable of type 'Animation<double>' because 'Animation<double>?' is nullable and 'Animation<double>' isn't.
- 'Animation' is from 'package:flutter/src/animation/animation.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/animation/animation.dart').
final Animation<double> currentTrain = (current is TrainHoppingAnimation ? current.currentTrain : current);
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/widgets/routes.dart:343:55: Error: A value of type 'Animation<double>?' can't be assigned to a variable of type 'Animation<double>' because 'Animation<double>?' is nullable and 'Animation<double>' isn't.
- 'Animation' is from 'package:flutter/src/animation/animation.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/animation/animation.dart').
final Animation<double> nextTrain = nextRoute._animation;
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/widgets/routes.dart:958:48: Error: The argument type 'Animation<double>?' can't be assigned to the parameter type 'Animation<double>' because 'Animation<double>?' is nullable and 'Animation<double>' isn't.
- 'Animation' is from 'package:flutter/src/animation/animation.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/animation/animation.dart').
widget.route.animation,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/widgets/routes.dart:959:48: Error: The argument type 'Animation<double>?' can't be assigned to the parameter type 'Animation<double>' because 'Animation<double>?' is nullable and 'Animation<double>' isn't.
- 'Animation' is from 'package:flutter/src/animation/animation.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/animation/animation.dart').
widget.route.secondaryAnimation,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/widgets/routes.dart:932:44: Error: The argument type 'Animation<double>?' can't be assigned to the parameter type 'Animation<double>' because 'Animation<double>?' is nullable and 'Animation<double>' isn't.
- 'Animation' is from 'package:flutter/src/animation/animation.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/animation/animation.dart').
widget.route.animation,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/widgets/routes.dart:933:44: Error: The argument type 'Animation<double>?' can't be assigned to the parameter type 'Animation<double>' because 'Animation<double>?' is nullable and 'Animation<double>' isn't.
- 'Animation' is from 'package:flutter/src/animation/animation.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/animation/animation.dart').
widget.route.secondaryAnimation,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/widgets/routes.dart:1685:17: Error: The argument type 'ImageFilter?' can't be assigned to the parameter type 'ImageFilter' because 'ImageFilter?' is nullable and 'ImageFilter' isn't.
- 'ImageFilter' is from 'dart:ui'.
filter: filter,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/rendering/object.dart:3403:38: Error: The argument type 'SemanticsConfiguration?' can't be assigned to the parameter type 'SemanticsConfiguration' because 'SemanticsConfiguration?' is nullable and 'SemanticsConfiguration' isn't.
- 'SemanticsConfiguration' is from 'package:flutter/src/semantics/semantics.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/semantics/semantics.dart').
describeSemanticsConfiguration(_cachedSemanticsConfiguration);
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/rendering/object.dart:3603:44: Error: The argument type 'SemanticsConfiguration?' can't be assigned to the parameter type 'SemanticsConfiguration' because 'SemanticsConfiguration?' is nullable and 'SemanticsConfiguration' isn't.
- 'SemanticsConfiguration' is from 'package:flutter/src/semantics/semantics.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/semantics/semantics.dart').
childConfigurations.add(fragment.config);
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/rendering/object.dart:4495:31: Context: 'config' refers to a property so it couldn't be promoted.
See http://dart.dev/go/non-promo-property
SemanticsConfiguration? get config;
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/rendering/object.dart:4575:38: Error: A value of type 'SemanticsNode?' can't be assigned to a variable of type 'SemanticsNode' because 'SemanticsNode?' is nullable and 'SemanticsNode' isn't.
- 'SemanticsNode' is from 'package:flutter/src/semantics/semantics.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/semantics/semantics.dart').
final SemanticsNode node = owner._semantics;
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/text_style.dart:1250:49: Error: A value of type 'Color?' can't be assigned to a variable of type 'Color' because 'Color?' is nullable and 'Color' isn't.
- 'Color' is from 'dart:ui'.
? a.foreground ?? (Paint()..color = a.color)
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/text_style.dart:1251:49: Error: A value of type 'Color?' can't be assigned to a variable of type 'Color' because 'Color?' is nullable and 'Color' isn't.
- 'Color' is from 'dart:ui'.
: b.foreground ?? (Paint()..color = b.color)
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/text_style.dart:1255:49: Error: A value of type 'Color?' can't be assigned to a variable of type 'Color' because 'Color?' is nullable and 'Color' isn't.
- 'Color' is from 'dart:ui'.
? a.background ?? (Paint()..color = a.backgroundColor)
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/text_style.dart:1256:49: Error: A value of type 'Color?' can't be assigned to a variable of type 'Color' because 'Color?' is nullable and 'Color' isn't.
- 'Color' is from 'dart:ui'.
: b.background ?? (Paint()..color = b.backgroundColor)
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/text_style.dart:1294:29: Error: A value of type 'Color?' can't be assigned to a variable of type 'Color' because 'Color?' is nullable and 'Color' isn't.
- 'Color' is from 'dart:ui'.
? (Paint()..color = backgroundColor)
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/text_style.dart:553:16: Context: 'backgroundColor' refers to a property so it couldn't be promoted.
See http://dart.dev/go/non-promo-property
final Color? backgroundColor;
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/text_painter.dart:1343:84: Error: The argument type 'TextDirection?' can't be assigned to the parameter type 'TextDirection' because 'TextDirection?' is nullable and 'TextDirection' isn't.
- 'TextDirection' is from 'dart:ui'.
final double paintOffsetAlignment = _computePaintOffsetFraction(textAlign, textDirection);
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/services/text_input.dart:713:1: Error: Type 'TextAffinity' not found.
TextAffinity? _toTextAffinity(String? affinity) {
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/services/text_input.dart:1038:22: Error: Type 'TextPosition' not found.
void bringIntoView(TextPosition position);
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/services/text_input.dart:716:14: Error: Undefined name 'TextAffinity'.
return TextAffinity.downstream;
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/services/text_input.dart:718:14: Error: Undefined name 'TextAffinity'.
return TextAffinity.upstream;
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/services/text_input.dart:781:77: Error: Undefined name 'TextAffinity'.
affinity: _toTextAffinity(encoded['selectionAffinity'] as String?) ?? TextAffinity.downstream,
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/services/text_input.dart:1038:22: Error: 'TextPosition' isn't a type.
void bringIntoView(TextPosition position);
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/services/binding.dart:262:89: Error: The argument type 'AppLifecycleState?' can't be assigned to the parameter type 'AppLifecycleState' because 'AppLifecycleState?' is nullable and 'AppLifecycleState' isn't.
- 'AppLifecycleState' is from 'dart:ui'.
final List<AppLifecycleState> generated = _generateStateTransitions(lifecycleState, state);
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:574:9: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
_currentFocalPoint,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:581:9: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
_currentFocalPoint,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:626:48: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
pointerStartLocation: _pointerLocations[_pointerQueue[0]],
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:628:46: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
pointerEndLocation: _pointerLocations[_pointerQueue[1]],
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:634:48: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
pointerStartLocation: _pointerLocations[_pointerQueue[0]],
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:636:46: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
pointerEndLocation: _pointerLocations[_pointerQueue[1]],
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:643:26: Error: A value of type 'Offset?' can't be assigned to a variable of type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
_initialFocalPoint = _currentFocalPoint;
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:706:25: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
focalPoint: _currentFocalPoint,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:722:23: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
focalPoint: _currentFocalPoint,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/scale.dart:736:30: Error: A value of type 'Offset?' can't be assigned to a variable of type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
_initialFocalPoint = _currentFocalPoint;
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/gestures/multidrag.dart:138:14: Error: The argument type 'Offset?' can't be assigned to the parameter type 'Offset' because 'Offset?' is nullable and 'Offset' isn't.
- 'Offset' is from 'dart:ui'.
delta: pendingDelta,
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/placeholder_span.dart:58:9: Error: Type 'TextBaseline' not found.
final TextBaseline? baseline;
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/placeholder_span.dart:58:9: Error: 'TextBaseline' isn't a type.
final TextBaseline? baseline;
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/placeholder_span.dart:93:33: Error: 'TextBaseline' isn't a type.
properties.add(EnumProperty<TextBaseline>('baseline', baseline, defaultValue: null));
^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/colors.dart:487:85: Error: The argument type 'Color?' can't be assigned to the parameter type 'Color' because 'Color?' is nullable and 'Color' isn't.
- 'Color' is from 'dart:ui'.
swatch = a!._swatch.map((T key, Color color) => MapEntry<T, Color>(key, Color.lerp(color, null, t)));
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/colors.dart:490:86: Error: The argument type 'Color?' can't be assigned to the parameter type 'Color' because 'Color?' is nullable and 'Color' isn't.
- 'Color' is from 'dart:ui'.
swatch = b._swatch.map((T key, Color color) => MapEntry<T, Color>(key, Color.lerp(null, color, t)));
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/colors.dart:492:86: Error: The argument type 'Color?' can't be assigned to the parameter type 'Color' because 'Color?' is nullable and 'Color' isn't.
- 'Color' is from 'dart:ui'.
swatch = a._swatch.map((T key, Color color) => MapEntry<T, Color>(key, Color.lerp(color, b[key], t)));
^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:377:3: Error: Type 'Path' not found.
Path getInnerPath(Rect rect, {TextDirection? textDirection}) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:377:21: Error: Type 'Rect' not found.
Path getInnerPath(Rect rect, {TextDirection? textDirection}) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:377:33: Error: Type 'TextDirection' not found.
Path getInnerPath(Rect rect, {TextDirection? textDirection}) {
^^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:390:3: Error: Type 'Path' not found.
Path getOuterPath(Rect rect, {TextDirection? textDirection}) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:390:21: Error: Type 'Rect' not found.
Path getOuterPath(Rect rect, {TextDirection? textDirection}) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:390:33: Error: Type 'TextDirection' not found.
Path getOuterPath(Rect rect, {TextDirection? textDirection}) {
^^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:402:14: Error: Type 'Canvas' not found.
void paint(Canvas canvas, Rect rect, {TextDirection? textDirection}) {
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:402:29: Error: Type 'Rect' not found.
void paint(Canvas canvas, Rect rect, {TextDirection? textDirection}) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:402:41: Error: Type 'TextDirection' not found.
void paint(Canvas canvas, Rect rect, {TextDirection? textDirection}) {
^^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:454:3: Error: Type 'Offset' not found.
Offset valley;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:455:3: Error: Type 'Offset' not found.
Offset point;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:456:3: Error: Type 'Offset' not found.
Offset valleyArc1;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:457:3: Error: Type 'Offset' not found.
Offset pointArc1;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:458:3: Error: Type 'Offset' not found.
Offset pointArc2;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:459:3: Error: Type 'Offset' not found.
Offset valleyArc2;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:488:3: Error: Type 'Path' not found.
Path generate(Rect rect) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:488:17: Error: Type 'Rect' not found.
Path generate(Rect rect) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:535:14: Error: Type 'Offset' not found.
required Offset center,
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:626:20: Error: Type 'Path' not found.
void _drawPoints(Path path, List<_PointInfo> points) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:659:20: Error: Type 'Offset' not found.
double _getAngle(Offset a, Offset b, Offset c) {
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:659:30: Error: Type 'Offset' not found.
double _getAngle(Offset a, Offset b, Offset c) {
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:659:40: Error: Type 'Offset' not found.
double _getAngle(Offset a, Offset b, Offset c) {
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:377:21: Error: 'Rect' isn't a type.
Path getInnerPath(Rect rect, {TextDirection? textDirection}) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:377:33: Error: 'TextDirection' isn't a type.
Path getInnerPath(Rect rect, {TextDirection? textDirection}) {
^^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:378:11: Error: 'Rect' isn't a type.
final Rect adjustedRect = rect.deflate(side.strokeInset);
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:390:21: Error: 'Rect' isn't a type.
Path getOuterPath(Rect rect, {TextDirection? textDirection}) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:390:33: Error: 'TextDirection' isn't a type.
Path getOuterPath(Rect rect, {TextDirection? textDirection}) {
^^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:402:14: Error: 'Canvas' isn't a type.
void paint(Canvas canvas, Rect rect, {TextDirection? textDirection}) {
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:402:29: Error: 'Rect' isn't a type.
void paint(Canvas canvas, Rect rect, {TextDirection? textDirection}) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:402:41: Error: 'TextDirection' isn't a type.
void paint(Canvas canvas, Rect rect, {TextDirection? textDirection}) {
^^^^^^^^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:407:15: Error: 'Rect' isn't a type.
final Rect adjustedRect = rect.inflate(side.strokeOffset / 2);
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:408:15: Error: 'Path' isn't a type.
final Path path = _StarGenerator(
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:454:3: Error: 'Offset' isn't a type.
Offset valley;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:455:3: Error: 'Offset' isn't a type.
Offset point;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:456:3: Error: 'Offset' isn't a type.
Offset valleyArc1;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:457:3: Error: 'Offset' isn't a type.
Offset pointArc1;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:458:3: Error: 'Offset' isn't a type.
Offset pointArc2;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:459:3: Error: 'Offset' isn't a type.
Offset valleyArc2;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:488:17: Error: 'Rect' isn't a type.
Path generate(Rect rect) {
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:490:11: Error: 'Offset' isn't a type.
final Offset center = rect.center;
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:514:11: Error: 'Path' isn't a type.
final Path path = Path();
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:517:5: Error: 'Offset' isn't a type.
Offset scale = Offset(rect.width / maxDiameter, rect.height / maxDiameter);
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:514:23: Error: The method 'Path' isn't defined for the class '_StarGenerator'.
- '_StarGenerator' is from 'package:flutter/src/painting/star_border.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart').
Try correcting the name to the name of an existing method, or defining a method named 'Path'.
final Path path = Path();
^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:517:20: Error: The method 'Offset' isn't defined for the class '_StarGenerator'.
- '_StarGenerator' is from 'package:flutter/src/painting/star_border.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart').
Try correcting the name to the name of an existing method, or defining a method named 'Offset'.
Offset scale = Offset(rect.width / maxDiameter, rect.height / maxDiameter);
^^^^^^
../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart:519:15: Error: The method 'Offset' isn't defined for the class '_StarGenerator'.
- '_StarGenerator' is from 'package:flutter/src/painting/star_border.dart' ('../../snap/flutter/common/flutter/packages/flutter/lib/src/painting/star_border.dart').
Try correcting the name to the name of an existing method, or defining a method named 'Offset'.
scale = Offset(scale.dx, squash * scale.dy + (1 - squash) * scale.dx);
^^^^^^
在执行“dart fix --apply”后，我遇到了类似的问题，并且收到了很多错误实例：未找到类型“TextAffinity”。 文本亲和力？ _toTextAffinity(String?affinity) { ...