修复 Flutter 项目中 xxx.kt: (19, 8): Redeclaration: xxxManager

2 years ago

source link: https://droidyue.com/blog/2022/10/04/fix-flutter-redeclaration-xxx-kotlin-error/
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修复 Flutter 项目中 xxx.kt: (19, 8): Redeclaration: xxxManager

Oct 4th, 2022

在我们日常构建 Android app 包时，多少会遇到这样的问题

[        ] e: /Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.3/android/src/main/kotlin/com/example/gogogo/xxxManager.kt: (19, 8): Redeclaration: xxxManager
[        ] e: /Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.3/android/src/main/kotlin/com/example/gogogo/xxxManager.kt: (79, 12): Redeclaration: gogogoResult
[        ] e: /Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.3/android/src/main/kotlin/com/example/gogogo/xxxManager.kt: (82, 12): Redeclaration: gogogoListResult
[        ] e: /Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/android/src/main/kotlin/com/example/gogogo/xxxManager.kt: (21, 8): Redeclaration: xxxManager
[        ] e: /Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/android/src/main/kotlin/com/example/gogogo/xxxManager.kt: (94, 12): Redeclaration: gogogoResult
[        ] e: /Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/android/src/main/kotlin/com/example/gogogo/xxxManager.kt: (97, 12): Redeclaration: gogogoListResult

问题的原因

因为 Kotlin 增量编译的bug。当你关闭增量编译时，该问题不会出现。

常用的解决办法

flutter clean
但是这个方法可能会比较重，因为它会清理掉一些多余的缓存，影响构建速度

更加轻量的解决办法

该方法只删除对应的pub 缓存，不删除其他的内容。

#!/bin/bash
find ~/.pub-cache/hosted  -name "$1-*" -type d -maxdepth 2 | xargs rm -rfv

保存上述命令为脚本。

比如我们出问题的 pub 名称为 gogogo 我们只需要清除它的版本缓存就可以了。

removePubCache.sh gogogo
/Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/LICENSE
/Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/test/gogogo_test.dart
/Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/test
/Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/CHANGELOG.md
/Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/example/test/widget_test.dart
/Users/xxxxxxxxx/.pub-cache/hosted/unpub.xxxxx.com/gogogo-1.0.4/example/test

然后执行一下flutter pub get --verbose即可（需要）。