运行Flutter时持续出现pubspec.yaml错误求助

错误提示“Unexpected child "sdk" found under "flutter"”的根源是你的配置文件存在两处关键问题：一是把Flutter的全局配置项错误放到了dev_dependencies节点下，二是部分配置的缩进不符合YAML语法规范。

以下是修正后的完整pubspec.yaml代码：

name: churro
description: A new Flutter project.
publish_to: 'none'

version: 1.0.0+1

environment:
  sdk: '>=2.18.4 <3.0.0'

dependencies:
  camera: ^0.10.0+4
  story_view: ^0.14.0
  flutter:
    sdk: flutter
  cupertino_icons: ^1.0.2

dev_dependencies:
  flutter_test:
    sdk: flutter
  flutter_lints: ^2.0.0

flutter:
  uses-material-design: true
  assets:
    - assets/images/

修改说明： #

• 将原dev_dependencies下的flutter:及其子项（uses-material-design、assets）移至文件根级别，与environment、dependencies同级——这部分是Flutter的全局配置，不属于开发依赖范畴
• 统一所有配置项的缩进（保持4个空格），确保YAML语法解析正常
• 删除dev_dependencies中多余的flutter:节点，避免出现无效的嵌套配置

内容的提问来源于stack exchange，提问作者Hamad Almuharib