flutter 错误：没有为类“BuildContext”定义方法“inheritFromWidgetOfExactType”

bvk5enib  于 2022-12-19  发布在  Flutter
关注(0)|答案(6)|浏览(490)

今天当我编译flutter项目时，它显示了以下错误：

This will generate a JSON format file containing all messages that 
need to be translated.
../../../.pub-cache/hosted/pub.flutter-io.cn/fish_redux-0.3.4/lib/src/redux_component/page.dart:208:17: Error: The method 'inheritFromWidgetOfExactType' isn't defined for the class 'BuildContext'.
 - 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('../../../apps/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'inheritFromWidgetOfExactType'.
        context.inheritFromWidgetOfExactType(PageProvider);
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../../.pub-cache/hosted/pub.flutter-io.cn/pull_to_refresh-1.6.3/lib/src/smart_refresher.dart:273:21: Error: The method 'ancestorWidgetOfExactType' isn't defined for the class 'BuildContext'.
 - 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('../../../apps/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'ancestorWidgetOfExactType'.
    return context?.ancestorWidgetOfExactType(SmartRefresher);
                    ^^^^^^^^^^^^^^^^^^^^^^^^^
../../../.pub-cache/hosted/pub.flutter-io.cn/pull_to_refresh-1.6.3/lib/src/smart_refresher.dart:277:21: Error: The method 'ancestorStateOfType' isn't defined for the class 'BuildContext'.
 - 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('../../../apps/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'ancestorStateOfType'.
    return context?.ancestorStateOfType(TypeMatcher<SmartRefresherState>());
                    ^^^^^^^^^^^^^^^^^^^
../../../.pub-cache/hosted/pub.flutter-io.cn/pull_to_refresh-1.6.3/lib/src/smart_refresher.dart:1003:20: Error: The method 'inheritFromWidgetOfExactType' isn't defined for the class 'BuildContext'.
 - 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('../../../apps/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'inheritFromWidgetOfExactType'.
    return context.inheritFromWidgetOfExactType(RefreshConfiguration);
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../../.pub-cache/hosted/pub.flutter-io.cn/chewie-0.9.10/lib/src/chewie_player.dart:276:17: Error: The method 'inheritFromWidgetOfExactType' isn't defined for the class 'BuildContext'.
 - 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('../../../apps/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'inheritFromWidgetOfExactType'.
        context.inheritFromWidgetOfExactType(_ChewieControllerProvider)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
../../../.pub-cache/hosted/pub.flutter-io.cn/chewie_audio-1.0.0+1/lib/src/chewie_player.dart:101:17: Error: The method 'inheritFromWidgetOfExactType' isn't defined for the class 'BuildContext'.
 - 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('../../../apps/flutter/packages/flutter/lib/src/widgets/framework.dart').
Try correcting the name to the name of an existing method, or defining a method named 'inheritFromWidgetOfExactType'.
        context.inheritFromWidgetOfExactType(_ChewieAudioControllerProvider)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

我正在使用扑动主频道，我是扑动医生：

[✓] Flutter (Channel master, 1.26.0-2.0.pre.366, on Mac OS X 10.15.7 19H114 darwin-x64, locale en-CN)
    • Flutter version 1.26.0-2.0.pre.366 at /Users/dolphin/apps/flutter
    • Framework revision b7f6d9bcb2 (24 hours ago), 2021-01-15 07:44:03 -0500
    • Engine revision 69a7538a90
    • Dart version 2.12.0 (build 2.12.0-227.0.dev)
    • Pub download mirror https://pub.flutter-io.cn
    • Flutter download mirror https://storage.flutter-io.cn

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at /Users/dolphin/Library/Android/sdk
    • Platform android-30, build-tools 30.0.2
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.3, Build version 12C33
    • CocoaPods version 1.10.0

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6915495)

[✓] IntelliJ IDEA Community Edition (version 2020.3.1)
    • IntelliJ at /Applications/IntelliJ IDEA CE.app
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] IntelliJ IDEA Ultimate Edition (version 2019.2.2)
    • IntelliJ at /Users/dolphin/Applications/JetBrains Toolbox/IntelliJ IDEA Ultimate.app
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] VS Code (version 1.52.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.18.1

[✓] Connected device (3 available)
    • sdk gphone x86 arm (mobile) • emulator-5554 • android-x86    • Android 11 (API 30) (emulator)
    • macOS (desktop)             • macos         • darwin-x64     • Mac OS X 10.15.7 19H114 darwin-x64
    • Chrome (web)                • chrome        • web-javascript • Google Chrome 87.0.4280.141
    ! Error: xiaoqiang 的 iPhone is not connected. Xcode will continue when xiaoqiang 的 iPhone is connected. (code
      -13)

• No issues found!
(base)

升级到flutter 2.0.1后，再次显示此错误：

~/Documents/GitHub/cruise-open on  feature/channel! ⌚ 15:01:43
$ ~/apps/flutter/bin/flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.0.1, on Mac OS X 10.15.7 19H114 darwin-x64, locale en-CN)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 4.1)
[✓] IntelliJ IDEA Community Edition (version 2020.3.2)
[✓] IntelliJ IDEA Ultimate Edition (version 2019.2.2)
[✓] VS Code (version 1.53.2)
[✓] Connected device (3 available)
    ! Error: xiaoqiang 的 iPhone is not connected. Xcode will continue when xiaoqiang 的 iPhone is connected. (code
      -13)

• No issues found!
(base)
flutter

6条答案

按热度按时间
li9yvcax

li9yvcax1#

此错误由**inheritFromWidgetOfExactType**方法引起。

此方法已弃用。请改用**dependOnInheritedWidgetOfExactType**。

您的项目仅包含它

第一种溶液：

手动返回到版本1.26.0-8.0或使用以下命令：

flutter downgrade

第二种溶液：

切换到测试频道

flutter channel beta

如果您还没有beta通道，则需要添加flutter upgrade

第三种溶液：

更新您的项目
在代码中找到**inheritFromWidgetOfExactType方法，并用dependOnInheritedWidgetOfExactType**修改它。

更换示例：
**之前：**使用InheritFromWidgetOfExactType

static Name of(BuildContext context) {
  return context.inheritFromWidgetOfExactType(Name);  //before
}

现在使用dependOnInheritedWidgetOfExactType（推荐）

static Name of(BuildContext context) {
  return context.dependOnInheritedWidgetOfExactType<Name>();  //after
}

现在不再使用Type作为参数，该方法是泛型的。
简化<...>()而不是(...)
该错误也可能是由您导入的程序包引起的：

**解决方案：**检查此程序包是否有新的更新
**事实上，**这个方法从flutter 1.12.1版本开始就已经过时了。但是在那之前，它是可以使用的，但是不推荐使用。从1.26.0-12.0.pre版本开始，它就不再使用了，这就解释了错误。

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5tmbdcev

5tmbdcev2#

更新

随着Flutter 2的发布，从长远来看，降级SDK并不是最好的解决方案。正确的做法是检查依赖项并更新它们。您可以使用flutter pub outdated terminal命令突出显示可用更新-然后使用较新版本更改pubspec.yaml并尝试运行您的应用。可能会发生某些依赖项没有更新或修复Flutter SDK中的破坏性更改。在这种情况下，您将被锁定为使用旧的Flutter（直到更新依赖项或用其他软件包替换它）。

原始

运行flutter downgrade
升级后立即收到相同错误。从 Flutter 1.26.0-12.0.pre · channel dev 切换到先前版本（1.26.0-8.0.pre）使构建再次工作
这是一个快速的修正，如果你没有心情去检查pubspec.yaml中的依赖关系，将它们更新到新的版本（希望有null-safe的更新），而只是想从你离开的地方继续下去。最终你将不得不检查你所有的包/插件，并将它们更新/替换为 nullsafe 版本。

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11dmarpk

11dmarpk3#

对我来说是因为我使用的是旧版本的依赖项。请检查pub.dev，看看是否有新版本的包！

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mftmpeh8

mftmpeh84#

如果你需要在flutter 1.26中运行provider，你应该运行：Flutter降级。
如果你需要在flutter 2.0.0 +中运行provider，你应该修改：
pubspec.yaml
提供程序：^2.0.1到^5.0.0
main.dart
更改创建的构建器
第一个月

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fzsnzjdm

fzsnzjdm5#

这种情况经常发生在开发和主通道上，flutter认为最稳定的主通道是Beta通道

flutter channel beta

Flutter build release channels
我们将在月初，通常是第一个星期一，从master分支到一个新的beta版本。这将包括一个Dart分支，引擎分支和框架分支。这个分支将在接下来的几周内“稳定”，这意味着我们将接受cherrypick对高影响问题的请求。当我们接近月底和下一个beta分支时，我们可能会减少我们愿意做的樱桃的数量。2一个季度一次，测试分支将继续生存，成为下一个稳定的分支，如下所述。

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koaltpgm

koaltpgm6#

使用低于4.0.0的provider版本时会出现此问题。
您可以通过打开pubspec.yaml文件并将提供程序版本更改为4.0.0或更高版本来解决此问题。

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