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dart - 从当前版本升级到最新版本时出现错误

问题描述

在我通过运行flutter upgrade在我的工作室终端内将flutter从当前版本升级到最新版本后，出现以下错误。

The current Dart SDK version is 2.1.0-dev.0.0.flutter-be6309690f.

Because no versions of uri match >0.11.3 <0.12.0 and uri >=0.7.1 <0.11.3 requires SDK version >=0.8.10 <2.0.0 or >=2.0.0-dev.18 <2.0.0, uri >=0.7.1 <0.11.3-∞ or >0.11.3 <0.12.0 is forbidden.
And because uri 0.11.3 depends on quiver >=0.17.0 <0.30.0 and every version of flutter_test from sdk depends on quiver 2.0.0+1, flutter_test from sdk is incompatible with uri >=0.7.1 <0.12.0.
And because map_view 0.0.14 depends on uri ^0.11.1 and no versions of map_view match >0.0.14 <0.1.0, flutter_test from sdk is incompatible with map_view ^0.0.14.
So, because maskn depends on both map_view ^0.0.14 and flutter_test any from sdk, version solving failed.
pub get failed (1)

我该如何解决这个问题？有什么办法可以从最新版本降级到我的旧版本？

标签： dartflutterupgrade

解决方案

添加这个pubpsec.yaml应该可以解决，直到uri发布支持 Dart 2.0.0 的版本

dependency_overrides:
  quiver: ^2.0.0+1

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