Can't run 'flutter pub get' because my sdk version is lower then it should be

Question

I have a problem in project. I want to migrate to flutter with null-safty. But when i want to run 'flutter pub get' i get message -

The current Dart SDK version is 2.12.0-133.2.beta.

Because flutter_shareit requires SDK version >=2.12.0 <3.0.0, version solving failed. pub upgrade failed (1; Because flutter_shareit requires SDK version >=2.12.0 <3.0.0, version solving failed.)

My flutter and dart version is

Flutter 2.0.5 • channel stable • https://github.com/flutter/flutter.git Framework • revision adc687823a (4 days ago) • 2021-04-16 09:40:20 -0700 Engine • revision b09f014e96 Tools • Dart 2.12.3

I tried using flutter clean, but still everything stays the same

My pubspec.yaml

environment:
  sdk: ">=2.12.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  cupertino_icons: ^1.0.2
  flutter_icons: ^1.1.0
  dots_indicator: ^2.0.0
  flutter_staggered_grid_view: ^0.4.0
  flutter_point_tab_bar: ^0.2.0
  splashscreen: ^1.3.5




dev_dependencies:
  flutter_test:
    sdk: flutter
  flutter_launcher_icons: "^0.8.1"

flutter_icons:
  image_path: "assets/icons/logoo.png"   
  android: true
  ios: true

flutter:
  uses-material-design: true

  assets:
    - assets/images/friends/
    - assets/images/posts/
    - assets/images/saved/
    - assets/images/story/
    - assets/images/splash/
  #   - images/a_dot_ham.jpeg

  fonts:
    - family: Ubuntu-Regular
      fonts:
        - asset: assets/fonts/Ubuntu-Regular.ttf
  #       - asset: fonts/Schyler-Italic.ttf
  #         style: italic
  #   - family: Trajan Pro
  #     fonts:
  #       - asset: fonts/TrajanPro.ttf
  #       - asset: fonts/TrajanPro_Bold.ttf
  #         weight: 700

Answer 1

Set the sdk to ">=2.10.0 <3.0.0". Switch to stable and then upgrade flutter to 2.0.

After that you should go through all your packages and upgrade them to null safety first.

Just follow the migration guide for more details