Flutter 如何解决pubspec.yaml中的映射值错误？

公共规范yaml

正在获取此错误。。。第39行第10列：此处不允许映射值。你有没有错过一个冒号

name: myvoapp
description: A new Flutter application.


publish_to:
version: 1.0.0+1

environment:
  sdk: ">=2.7.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  cupertino_icons: ^0.1.3
  flutter_login: ^1.0.14
  record_mp3: ^2.0.0
  permission_handler: ^5.0.1+1
  path_provider: ^1.6.11
  audioplayer: ^0.8.1
  stop_watch_timer: ^0.5.0
  firebase_core: ^0.4.5
  firebase_auth: ^0.16.1
  cloud_firestore: ^0.13.7
  modal_progress_hud: ^0.1.3
  animated_text_kit: ^2.2.0




dev_dependencies:
  flutter_test:
    sdk: flutter

flutter:

  uses-material-design: true

   assets:
    - images/icon1.png

名称：myvoapp
描述：一个新的颤振应用。
发布到：
版本：1.0.0+1
环境：
sdk:“>=2.7.0修复了它，您的
资产
缩进错误：

请使用以下内容：

name: myvoapp
description: A new Flutter application.


publish_to:
version: 1.0.0+1

environment:
  sdk: ">=2.7.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  cupertino_icons: ^0.1.3
  flutter_login: ^1.0.14
  record_mp3: ^2.0.0
  permission_handler: ^5.0.1+1
  path_provider: ^1.6.11
  audioplayer: ^0.8.1
  stop_watch_timer: ^0.5.0
  firebase_core: ^0.4.5
  firebase_auth: ^0.16.1
  cloud_firestore: ^0.13.7
  modal_progress_hud: ^0.1.3
  animated_text_kit: ^2.2.0




dev_dependencies:
  flutter_test:
    sdk: flutter

flutter:

  uses-material-design: true

  # assets indentation was wrong
  assets:
    - images/icon1.png

名称：myvoapp
描述：一个新的颤振应用。
发布到：
版本：1.0.0+1
环境：
sdk:“>=2.7.0