Question

我想在flutter中使用local_auth插件，它需要Android生命周期，因此我安装了flutter_plugin_android_lifecycle，但是如果我尝试发布apk，则会收到此错误消息：error：包androidx.lifecycle不存在。我尝试了很多事情，但无法正常工作。

''' C：\ flutter.pub-cache \ hosted \ pub.dartlang.org \ flutter_plugin_android_lifecycle-1.0.7 \ android \ src \ main \ java \ io \ flutter \ embeddding \ engine \ plugins \ lifecycle \ FlutterLifecycleAdapter.java：8：错误：包androidx.lifecycle不存在导入androidx.lifecycle.Lifecycle; ^ C：\ flutter.pub-cache \ hosted \ pub.dartlang.org \ flutter_plugin_android_lifecycle-1.0.7 \ android \ src \ main \ java \ io \ flutter \ embeddding \ engine \ plugins \ lifecycle \ FlutterLifecycleAdapter.java：22：错误：找不到标志公共静态生命周期getActivityLifecycle（ ^ 符号：类生命周期位置：类FlutterLifecycleAdapter 2个错误

       FAILURE: Build failed with an exception.

       * What went wrong:
       Execution failed for task ':compileReleaseJavaWithJavac'.
       > Compilation failed; see the compiler error output for details.

       * Try:
       Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

       * Get more help at https://help.gradle.org

       BUILD FAILED in 1s

'''

Answer 1

在build.grable插件文件夹中添加实现'androidx.lifecycle：lifecycle-extensions：2.2.0'将解决此问题。

有关更多详细信息，请参见https://github.com/flutter/flutter/issues/60883。

Answer 2

在您扑朔迷离的Yaml依赖项中添加它

flutter_plugin_android_lifecycle: ^1.0.11

有关更多信息，请访问：https://pub.dev/packages/flutter_plugin_android_lifecycle/install

Answer 3

这也可能是由于版本问题引起的，因此请尝试在/android/build.gradle中使用这些兼容版本

classpath'com.android.tools.build:gradle:3.5.4'

您也可以尝试：

3.3.3

3.4.3

3.5.4

3.6.4

4.0.1

使用flutter插件file_picker时出现此错误。我希望这项工作。

错误：Flutter中不存在androidx.lifecycle软件包

3 个答案: