Android studio build 导航组件出错，action 不是抽象的，也没有实现抽象的成员 actionID

Question

不知何故，构建崩溃了，并出现了与导航组件相关的奇怪错误，尽管它以前可以工作，但错误出在生成的类中，就我而言 NativeLanguageSelectionFragmentDirections

这是错误

e: C:\Users\David\StudioProjects\android\app\build\generated\source\navigation-args\debug\com\linguistic\linguistic\framework\presentation\loginscreens\ui\main\NativeLanguageSelectionFragmentDirections.kt: (10, 16): Class 'GoToSelectLearningLangAction' is not abstract and does not implement abstract member public abstract val actionId: Int defined in androidx.navigation.NavDirections
e: C:\Users\David\StudioProjects\android\app\build\generated\source\navigation-args\debug\com\linguistic\linguistic\framework\presentation\loginscreens\ui\main\NativeLanguageSelectionFragmentDirections.kt: (13, 12): 'getActionId' overrides nothing
e: C:\Users\David\StudioProjects\android\app\build\generated\source\navigation-args\debug\com\linguistic\linguistic\framework\presentation\loginscreens\ui\main\NativeLanguageSelectionFragmentDirections.kt: (15, 12): 'getArguments' overrides nothing

这是导航图的代码

e: C:\Users\David\StudioProjects\android\app\build\generated\source\navigation-args\debug\com\linguistic\linguistic\framework\presentation\loginscreens\ui\main\NativeLanguageSelectionFragmentDirections.kt: (10, 16): Class 'GoToSelectLearningLangAction' is not abstract and does not implement abstract member public abstract val actionId: Int defined in androidx.navigation.NavDirections
e: C:\Users\David\StudioProjects\android\app\build\generated\source\navigation-args\debug\com\linguistic\linguistic\framework\presentation\loginscreens\ui\main\NativeLanguageSelectionFragmentDirections.kt: (13, 12): 'getActionId' overrides nothing
e: C:\Users\David\StudioProjects\android\app\build\generated\source\navigation-args\debug\com\linguistic\linguistic\framework\presentation\loginscreens\ui\main\NativeLanguageSelectionFragmentDirections.kt: (15, 12): 'getArguments' overrides nothing

我在用

 "androidx.navigation:navigation-fragment-ktx:2.3.5"
 "androidx.navigation:navigation-ui-ktx:2.3.5"

Answer 1

就我而言，我还必须更新 Safe Arg 插件才能消除错误消息。

[build.gradle]
buildscript {
    ...
    dependencies {
        ...
        classpath 'androidx.navigation:navigation-safe-args-gradle-plugin:2.4.0-alpha04'
}

[app/build.gradle]
dependencies {
    ...
    implementation 'androidx.fragment:fragment-ktx:1.4.0-alpha04'
    api 'androidx.navigation:navigation-fragment-ktx:2.4.0-alpha04'
    api 'androidx.navigation:navigation-ui-ktx:2.4.0-alpha04'
}

Answer 2

我也有这个问题。直到他们发布修复程序。请试试这个：

plugins {
  id("androidx.navigation.safeargs")
}

代替

plugins {
  id("androidx.navigation.safeargs.kotlin")
}

Answer 3

所有这些依赖项

androidx.navigation:navigation-fragment-ktx
androidx.navigation:navigation-ui-ktx
androidx.navigation:navigation-safe-args-gradle-plugin

需要使用相同的版本 - 例如：在撰写本文时，它是2.4.0-alpha10

Answer 4

由于版本v2.4.0-alpha02已发布，此已知错误不再存在。

Bug修复

• 尝试在 Kotlin 中生成方向属性时，Safe Args 不再崩溃。( Id2416 , b/188564435 )