flutter - 最新版本的火焰是否支持零安全?
问题描述
我对火焰游戏引擎很陌生,但是每当我尝试运行我的程序时,它总是说
错误:无法以可靠的 null 安全性运行,因为以下依赖项不支持 null 安全性:
- 包装:火焰
- 包:ordered_set
- 包:box2d_flame
我只是想知道我是否没有使用最新版本的火焰,或者我是否需要暂时禁用空安全?这是我的 pubspec.yaml 文件当前的样子。
name: first_game
description: A new Flutter project.
# The following line prevents the package from being accidentally published to
# pub.dev using `pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+1
environment:
sdk: ">=2.12.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
shared_preferences: ^2.0.5
flame: ^0.29.4
dev_dependencies:
flutter_test:
sdk: flutter
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to 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:
- assets/images/terrythemale.png
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware.
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-packages
解决方案
这是当前的稳定版本,我们的最新版本是1.0.0-rc10
并且我们确实支持空安全(这也是我们所有文档的版本)。
但是请注意, pub 计数rc10
小于rc9
,因此您必须跳过^
pubspec 文件中的 并具体依赖rc10
如下:
dependencies:
...
flame: 1.0.0-rc10
我们很可能会在今天晚些时候发布不会有这个问题的 rc11。
编辑:rc11
现已发布,所以现在您可以^
再次使用:
dependencies:
...
flame: "^1.0.0-releasecandidate.11"
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