"uses-material-design: true" 不与 pubspec.yaml 中的其他资产一起使用

Question

在删除/注释此行之前，我无法将任何资产(如图像、字体等(添加到我的项目应用程序中

uses-material-design: true

错误

Error detected in pubspec.yaml:
Restarted application in ٨ms.
Error on line 25, column 4: Expected a key while parsing a block mapping.
╷
25 │    assets:
│    ^
╵
Exception: Please correct the pubspec.yaml file at .pubspec.yaml

除了这个问题，pubspec.yaml中一切都正常

name: mi_card
description: A new Flutter application.
version: 1.0.0+1
environment:
sdk: ">=2.1.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^0.1.2
dev_dependencies:
flutter_test:
sdk: flutter

flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
assets:
- images/
fonts:
- family: Pacifico
fonts:
- asset: fonts/Pacifico-Regular.ttf
- family: Source Sans Pro
fonts:
- asset: fonts/SourceSansPro-Regular.ttf

但因为我需要使用材质图标，我需要将其与我的资产一起添加，所以如何解决这个问题？

Answer 1

pubspec.yaml对缩进敏感。

并且uses-material-design: true之后的in文件缩进一个空格，尝试删除它，它就会起作用。

复制这个并尝试：

name: mi_card
description: A new Flutter application.
version: 1.0.0+1
environment:
sdk: ">=2.1.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^0.1.2
dev_dependencies:
flutter_test:
sdk: flutter

flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
assets:
- images/
fonts:
- family: Pacifico
fonts:
- asset: fonts/Pacifico-Regular.ttf
- family: Source Sans Pro
fonts:
- asset: fonts/SourceSansPro-Regular.ttf