问题描述
我尝试用以前的版本替换 riverpod 的版本，但没有任何效果。我也尝试删除 pubspec.lock 文件，运行 Flutter clean 命令等，但没有任何效果。如果任何使用 Flutter 2.2.2 的人能够使用 riverpod（任何版本），请帮忙。
pubspec.yaml 文件：
name: riverpod
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
cupertino_icons: ^1.0.2
Flutter_riverpod: ^0.14.0+3
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:
# - images/a_dot_burr.jpeg
# - 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
我在下面附上输出：
Running "Flutter pub get" in riverpod...
Because riverpod depends on Flutter_riverpod ^0.14.0+3 which depends on riverpod ^0.14.0+3,riverpod ^0.14.0+3 is required.
So,because riverpod is 1.0.0+1,version solving Failed.
pub get Failed (1; So,version solving Failed.)
exit code 1```
解决方法
使用riverpod时，您只需要包含一个依赖项。
看来您包括了riverpod 和 flutter_riverpod。
相反，只使用 flutter_riverpod。
为了说明这一点：
有效的 pubspec.yaml 用于：
纯飞镖：
customWebpackConfig非钩子：
dependencies:
riverpod: ^0.14.0
钩子：
dependencies:
flutter_riverpod: ^0.14.0
可以通过 flowchart in the docs 查看此信息。
编辑：您的具体问题是因为您的项目名为 riverpod。它与 hooks_riverpod 和 flutter_riverpod 的 riverpod 依赖相冲突。重命名您的项目，它就会起作用。
,我遇到了这个问题。这是因为我将 name: riverpod 放在了我的 pubspec.yaml 文件中。我可以看到你也犯了同样的错误。更改名称并尝试。希望您节省时间。