无法运行“Flutter pub Get”，因为我的sdk版本低于应该的版本

Question

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

将sdk设置为“>=2.10.0<3.0.0”。切换到稳定，然后将颤振升级到2.0。

之后，您应该检查所有的软件包，并首先将它们升级为空安全。

请按照迁移指南了解更多详细信息