A bunch of errors

[smakarov]

For example sembast_data_store.dart line 157
`The value

The return type 'dynamic' isn't a 'bool', as required by the closure's context.dart(return_of_invalid_type_from_closure)`

flutter doctor -v

[√] Flutter (Channel stable, 2.0.2, on Microsoft Windows [Version 10.0.18363.1440], locale en-US)
• Flutter version 2.0.2 at C:\src\flutter
• Framework revision 8962f6dc68 (6 days ago), 2021-03-11 13:22:20 -0800
• Engine revision 5d8bf811b3
• Dart version 2.12.1

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.0-rc2)
• Android SDK at C:\Users\Teq\AppData\Local\Android\sdk
• Platform android-30, build-tools 30.0.0-rc2
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
• All Android licenses accepted.

[√] Chrome - develop for the web
• Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe

[√] Android Studio (version 4.1.0)
• Android Studio at C:\Program Files\Android\Android Studio
• 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-b01)

[√] IntelliJ IDEA Ultimate Edition (version 2020.1)
• IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA 2020.1
• Flutter plugin version 45.1.3
• Dart plugin version 201.7223.43

[√] VS Code, 64-bit edition (version 1.54.3)
• VS Code at C:\Program Files\Microsoft VS Code
• Flutter extension version 3.20.0

[√] Connected device (4 available)
• Pixel 3a (mobile) • 93GAY0B28F • android-arm64 • Android 11 (API 30)
• Android SDK built for x86 (mobile) • emulator-5554 • android-x86 • Android 10 (API 29) (emulator)
• Chrome (web) • chrome • web-javascript • Google Chrome 89.0.4389.82
• Edge (web) • edge • web-javascript • Microsoft Edge 89.0.774.50

[jagare]

I don't have "a bunch of errors" running Flutter 2.2.2

[jagare]

Well, except for states_rebuilder due to null safety.