title: Error: The method 'inheritFromWidgetOfExactType' isn't defined for the class 'BuildContext'
body: <p>Today when I compile my flutter project, it shows this error:</p>
  <pre><code>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&lt;SmartRefresherState&gt;());
                      ^^^^^^^^^^^^^^^^^^^
  ../../../.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)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  </code></pre>
  <p>I am using flutter master channel, this is the flutter doctor:</p>
  <pre><code>[✓] 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)
  </code></pre>
  <p>after upgrade to flutter 2.0.1, shows this error again:</p>
  <pre><code>~/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)
  </code></pre>