安卓撰写。尝试运行基本代码时出错

Question

我开始使用 Android Jetpack Compose。我安装了 Canary，当我创建一个 Empty Compose Activity 并在没有更改的情况下运行它(Hello Android!)我有下一个错误:

    Process: com.example.jetpacktest2, PID: 24788
    java.lang.AbstractMethodError: abstract method "void androidx.lifecycle.DefaultLifecycleObserver.onCreate(androidx.lifecycle.LifecycleOwner)"
        at androidx.lifecycle.FullLifecycleObserverAdapter.onStateChanged(FullLifecycleObserverAdapter.java:36)
        at androidx.lifecycle.LifecycleRegistry$ObserverWithState.dispatchEvent(LifecycleRegistry.java:354)
        at androidx.lifecycle.LifecycleRegistry.addObserver(LifecycleRegistry.java:196)
        at androidx.compose.ui.platform.AndroidComposeView.onAttachedToWindow(AndroidComposeView.android.kt:808)
        at android.view.View.dispatchAttachedToWindow(View.java:19855)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3597)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3604)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3604)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3604)
        at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3604)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2376)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1993)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8459)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1256)
        at android.view.Choreographer.doCallbacks(Choreographer.java:995)
        at android.view.Choreographer.doFrame(Choreographer.java:887)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1224)
        at android.os.Handler.handleCallback(Handler.java:900)
        at android.os.Handler.dispatchMessage(Handler.java:103)
        at android.os.Looper.loop(Looper.java:219)
        at android.app.ActivityThread.main(ActivityThread.java:8387)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1055)

我没有修改任何东西，它是Android创建的基础代码。任何帮助表示赞赏。
PS:我加载了在 Android Studio 上制作的其他代码(没有 compose)，它运行时没有错误。

Answer 1

我有同样的问题。这是android studio canary build的问题。它是 Canary 构建的一种错误。所以它的修复很简单。
执行以下步骤:

卸载金丝雀 Android Studio。

下载最新的 Android Studio 候选版本 (2020.3.1 RC 1)
链接:https://developer.android.com/studio/preview

它现在可以像以前一样正常工作。我解决了与此相同的问题。它将 100% 保证有效。