Flutter资产：pubspec.yaml：依赖项可能只有一个来源

如何解决Flutter资产：pubspec.yaml：依赖项可能只有一个来源

我正尝试在Flutter项目中添加一个简单的资产。

这是我的pubspec.yaml：

version: 1.0.0+1

environment:
  sdk: ">=2.9.1 <3.0.0"

dependencies:
  Flutter:
    sdk: Flutter
    assets:
      - assets/profile.orwell

  json_annotation: ^3.0.1
  uuid:
    path: ./lib/liborwellprofile/dart-uuid
  orwell_Flutter_plugin:
    path: ./orwell_Flutter_plugin

我得到了错误：

Error on line 21,column 5 of pubspec.yaml: A dependency may only have one source.

   ╷

21 │ ┌     sdk: Flutter

22 │ │     assets:

23 │ │       - assets/profile.orwell

24 │ │ 

25 │ │   json_annotation: ^3.0.1
   │ └──^

当我拿出assets:...时，一切正常。

我只是按照https://flutter.dev/docs/development/ui/assets-and-images的指示进行了操作。怎么了？

解决方法

您正在assets下添加dependencies，这是不应该的。

尝试一下：

version: 1.0.0+1

environment:
  sdk: ">=2.9.1 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  json_annotation: ^3.0.1
  uuid:
    path: ./lib/liborwellprofile/dart-uuid
  orwell_flutter_plugin:
    path: ./orwell_flutter_plugin

flutter:
  assets:
    - assets/profile.orwell