正如标题所述，当我尝试运行我的应用程序时，出现编译器错误消息。在重置笔记本电脑之前，我已经进行了此工作（但是保留了所有文件）。我已经尝试进行抖动清除，并尝试将Extended_image更新到最新版本（0.6.8），但是仍然无法正常工作，因此我将其降级为0.6.7。
此外，我只安装了extended_image，而没有extended_image_library。看起来Extended_image会自行安装。
以下是消息：
Compiler message:
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_network_image_provider.dart:63:41: Error: Type 'DecoderCallback' not found.
ExtendedNetworkImageProvider key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_network_image_provider.dart:87:41: Error: Type 'DecoderCallback' not found.
ExtendedNetworkImageProvider key, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_image_provider.dart:14:23: Error: Type 'DecoderCallback' not found.
Uint8List data, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_memory_image_provider.dart:12:46: Error: Type 'DecoderCallback' not found.
ImageStreamCompleter load(MemoryImage key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_memory_image_provider.dart:19:48: Error: Type 'DecoderCallback' not found.
Future<ui.Codec> _loadAsync(MemoryImage key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_file_image_provider.dart:13:44: Error: Type 'DecoderCallback' not found.
ImageStreamCompleter load(FileImage key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_file_image_provider.dart:23:46: Error: Type 'DecoderCallback' not found.
Future<ui.Codec> _loadAsync(FileImage key, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:35:54: Error: Type 'DecoderCallback' not found.
ImageStreamCompleter load(AssetBundleImageKey key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:52:32: Error: Type 'DecoderCallback' not found.
AssetBundleImageKey key, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:88:54: Error: Type 'DecoderCallback' not found.
ImageStreamCompleter load(AssetBundleImageKey key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:105:32: Error: Type 'DecoderCallback' not found.
AssetBundleImageKey key, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_memory_image_provider.dart:12:24: Error: The method 'ExtendedMemoryImageProvider.load' has more required arguments than those of overridden method 'MemoryImage.load'.
ImageStreamCompleter load(MemoryImage key, DecoderCallback decode) {
^
/C:/src/flutter/packages/flutter/lib/src/painting/image_provider.dart:596:24: Context: This is the overridden method ('load').
ImageStreamCompleter load(MemoryImage key) {
^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_file_image_provider.dart:13:24: Error: The method 'ExtendedFileImageProvider.load' has more required arguments than those of overridden method 'FileImage.load'.
ImageStreamCompleter load(FileImage key, DecoderCallback decode) {
^
/C:/src/flutter/packages/flutter/lib/src/painting/image_provider.dart:528:24: Context: This is the overridden method ('load').
ImageStreamCompleter load(FileImage key) {
^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:35:24: Error: The method 'ExtendedExactAssetImageProvider.load' has more required arguments than those of overridden method 'AssetBundleImageProvider.load'.
ImageStreamCompleter load(AssetBundleImageKey key, DecoderCallback decode) {
^
/C:/src/flutter/packages/flutter/lib/src/painting/image_provider.dart:447:24: Context: This is the overridden method ('load').
ImageStreamCompleter load(AssetBundleImageKey key) {
^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:88:24: Error: The method 'ExtendedAssetImageProvider.load' has more required arguments than those of overridden method 'AssetBundleImageProvider.load'.
ImageStreamCompleter load(AssetBundleImageKey key, DecoderCallback decode) {
^
/C:/src/flutter/packages/flutter/lib/src/painting/image_provider.dart:447:24: Context: This is the overridden method ('load').
ImageStreamCompleter load(AssetBundleImageKey key) {
^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_network_image_provider.dart:62:24: Error: The method 'ExtendedNetworkImageProvider.load' has more required arguments than those of overridden method 'ImageProvider.load'.
ImageStreamCompleter load(
^
/C:/src/flutter/packages/flutter/lib/src/painting/image_provider.dart:383:24: Context: This is the overridden method ('load').
ImageStreamCompleter load(T key);
^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image-0.6.8/lib/src/gesture/extended_image_gesture.dart:97:19: Error: The method 'findAncestorStateOfType' isn't defined for the class 'BuildContext'.
- 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('/C:/src/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'findAncestorStateOfType'.
context.findAncestorStateOfType<ExtendedImageGesturePageViewState>();
^^^^^^^^^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image-0.6.8/lib/src/gesture/extended_image_gesture.dart:108:19: Error: The method 'findAncestorStateOfType' isn't defined for the class 'BuildContext'.
- 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('/C:/src/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'findAncestorStateOfType'.
context.findAncestorStateOfType<ExtendedImageGesturePageViewState>();
^^^^^^^^^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image-0.6.8/lib/src/extended_image.dart:659:19: Error: The method 'findAncestorStateOfType' isn't defined for the class 'BuildContext'.
- 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('/C:/src/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'findAncestorStateOfType'.
context.findAncestorStateOfType<ExtendedImageSlidePageState>();
^^^^^^^^^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image-0.6.8/lib/src/extended_image.dart:681:14: Error: The method 'findAncestorStateOfType' isn't defined for the class 'BuildContext'.
- 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('/C:/src/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'findAncestorStateOfType'.
.findAncestorStateOfType<ExtendedImageSlidePageState>();
^^^^^^^^^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_network_image_provider.dart:63:41: Error: 'DecoderCallback' isn't a type.
ExtendedNetworkImageProvider key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_network_image_provider.dart:87:41: Error: 'DecoderCallback' isn't a type.
ExtendedNetworkImageProvider key, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_image_provider.dart:14:23: Error: 'DecoderCallback' isn't a type.
Uint8List data, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_memory_image_provider.dart:12:46: Error: 'DecoderCallback' isn't a type.
ImageStreamCompleter load(MemoryImage key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_memory_image_provider.dart:19:48: Error: 'DecoderCallback' isn't a type.
Future<ui.Codec> _loadAsync(MemoryImage key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_file_image_provider.dart:13:44: Error: 'DecoderCallback' isn't a type.
ImageStreamCompleter load(FileImage key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_file_image_provider.dart:23:46: Error: 'DecoderCallback' isn't a type.
Future<ui.Codec> _loadAsync(FileImage key, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:35:54: Error: 'DecoderCallback' isn't a type.
ImageStreamCompleter load(AssetBundleImageKey key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:52:32: Error: 'DecoderCallback' isn't a type.
AssetBundleImageKey key, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:88:54: Error: 'DecoderCallback' isn't a type.
ImageStreamCompleter load(AssetBundleImageKey key, DecoderCallback decode) {
^^^^^^^^^^^^^^^
../../../AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/extended_image_library-0.1.9/lib/src/extended_asset_bundle_image_provider.dart:105:32: Error: 'DecoderCallback' isn't a type.
AssetBundleImageKey key, DecoderCallback decode) async {
^^^^^^^^^^^^^^^
Compiler failed on C:\Users\Ken\Documents\flutter_projects\project_name\lib\main.dart
FAILURE: Build failed with an exception.
* Where:
Script 'C:\src\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 765
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebugX86'.
> Process 'command 'C:\src\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 14s
Finished with error: Gradle task assembleDebug failed with exit code 1
Flutter Doctor输出
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel unknown, v1.9.1+hotfix.6, on Microsoft Windows [Version 10.0.18362.535], locale en-GB)
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[√] Android Studio (version 3.5)
[√] VS Code, 64-bit edition (version 1.41.1)
[√] Connected device (1 available)
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