为什么 pubspec 环境/sdk/使用“'>=2.7.0 <3.0.0'”而不是“^2.7.0”
why pubspec environment / sdk / uses " '>=2.7.0 <3.0.0' " instead of " ^2.7.0 "
我对 semver
的理解非常有限
这个
environment:
sdk: ^2.7.0
相当于这个
environment:
sdk: '>=2.7.0 <3.0.0'
包发布严格执行此格式
Package validation found the following error:
* ^ version constraints aren't allowed for SDK constraints since older versions of pub don't support them.
Expand it manually instead:
environment:
sdk: ">=2.7.0 <3.0.0"
Sorry, your package is missing a requirement and can't be published yet.
Flutter 使用 latter 代替 former 方法有什么原因吗，
哪个可以说更熟悉 consistent ?
一些定义：
^2.7.0 是 Caret syntax>=2.7.0 <3.0.0 是 Traditional syntax
并基于documentation：
Because caret syntax was introduced in Dart 1.8.3, it requires an SDK constraint (using traditional syntax) to ensure that older versions of pub don’t try to process it. For example:
environment:
sdk: '>=1.8.3 <3.0.0'
我对 semver
的理解非常有限这个
environment:
sdk: ^2.7.0
相当于这个
environment:
sdk: '>=2.7.0 <3.0.0'
包发布严格执行此格式
Package validation found the following error:
* ^ version constraints aren't allowed for SDK constraints since older versions of pub don't support them.
Expand it manually instead:
environment:
sdk: ">=2.7.0 <3.0.0"
Sorry, your package is missing a requirement and can't be published yet.
Flutter 使用 latter 代替 former 方法有什么原因吗，
哪个可以说更熟悉 consistent ?
一些定义：
^2.7.0是Caret syntax>=2.7.0 <3.0.0是Traditional syntax
并基于documentation：
Because caret syntax was introduced in Dart 1.8.3, it requires an SDK constraint (using traditional syntax) to ensure that older versions of pub don’t try to process it. For example:
environment:
sdk: '>=1.8.3 <3.0.0'