Question

我最近将 Flutter 版本从我之前的版本更新到了 2.0，但除了少数例外，我决定降级回我在稳定频道上的 Flutter 版本（1.22.6）。

现在我在 pub get 上收到这个错误因为来自 sdk 的 flutter_test 的每个版本都依赖于路径 1.8.0-nullsafety.1 而 PawFect 依赖于路径 ^1.8.0，所以禁止来自 sdk 的 flutter_test。因此，由于 PawFect 依赖于 sdk 中的 flutter_test any，因此版本求解失败。 pub get failed (1; 所以，因为 PawFect 依赖于 sdk 中的任何 flutter_test，版本解析失败。)

我的 pubspec.yaml 现在看起来像这样。

...
version: 1.0.25+7

environment:
  sdk: ">=2.7.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  #Firebase Core API
  firebase_core: ^0.7.0

  #firebase analytics
  firebase_analytics: ^7.0.1

  #firebase crashlytics
  firebase_crashlytics: ^0.4.0+1

  #firebase performance
  firebase_performance: ^0.5.0+1

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.3
  shared_preferences: ^0.5.12+4
  shimmer: ^1.1.2
  lite_rolling_switch: ^0.1.1
  intl: ^0.17.0
#  country_code_picker: ^1.7.0
  image_picker: ^0.6.7+21
  connectivity: ^3.0.3
#  flutter_spinkit: ^4.1.2+1
#  gallery_saver: ^2.0.1
    #  camera: ^0.5.8+5
  path: ^1.8.0
  http: ^0.12.2
  toggle_switch: ^0.1.8
  pie_chart: ^5.0.0
  fl_chart: ^0.20.1
  percent_indicator: ^2.1.9
  simple_animations: ^2.4.2
  package_info: ^0.4.3+2
#  dio: ^3.0.10
  sqflite: ^2.0.0+3
  path_provider: ^1.6.27
  get_it: ^6.0.0
  progress_dialog: ^1.2.4
  mime: ^0.9.7
  http_parser: ^3.1.4
  flutter_image_compress: ^0.7.0
  flutter_launcher_icons: ^0.9.0
  device_preview: ^0.7.1
  fluttertoast: ^7.1.6
  in_app_purchase: ^0.3.5+1
  font_awesome_flutter: ^9.0.0
#  rename: ^1.3.0
  expansion_tile_card: ^2.0.0
  url_launcher: ^6.0.2
  provider: ^4.3.2+4
#  number_display: ^2.3.0
#  functional_widget_annotation: ^0.8.0
#  stripe_payment: ^1.0.9

flutter_icons:
#  android: "launcher_icon"
  image_path: "assets/images/pawfect_logo.png"
#  image_path_android: "assets/images/logo_large.png"
#  image_path_ios: "assets/images/logo_large.png"
  android: true # can specify file name here e.g. "ic_launcher"
  ios: true # can specify file name here e.g. "My-Launcher-Icon"
#  adaptive_icon_background: "assets/images/christmas-background.png" # only available for Android 8.0 devices and above
#  adaptive_icon_foreground: "assets/images/icon-foreground-432x432.png" # only available for Android 8.0 devices and above

dev_dependencies:
  flutter_test:
    sdk: flutter
..

如何解决此错误，并顺利获得依赖项。？

颤动医生

flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 1.22.6, on Mac OS X 10.15.7 19H114 darwin-x64,
    locale en-GB)
 
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 12.4)
[!] Android Studio (version 4.1)
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
[!] Connected device
    ! No devices available

因为 sdk 中每个版本的 flutter_test 都依赖于路径 1.8.0-nullsafety.1

0 个答案: