Android未能加载AppCompat ActionBar，错误未知

Question

当我在Android中运行我的项目时，我会得到XML文档的折叠错误，即activity_main.xml。我使用最新的LTS内核在Manjaro的最新安装上运行Android。

渲染问题 未能加载带有未知错误的AppCompat ActionBar。 无法实例化一个或多个类，无法实例化下列类: android.support.v7.widget.ActionBarContextView (开放类，显示异常，清除缓存)- android.support.v7.widget.Toolbar (打开类，显示异常，清除缓存)- android.support.v7.widget.AppCompatTextView (打开类，显示异常，清除缓存)-android.support.v7.widget.AppCompatTextView(打开类，显示异常，清除缓存)- android.support.v7.app.WindowDecorActionBar (开放类，显示异常，显示异常，清除缓存)- android.support.v7.widget.ActionBarOverlayLayout (开放类，显示异常，清除缓存)

堆栈跟踪：

java.lang.ClassNotFoundException: android.support.v4.view.TintableBackgroundView
    at org.jetbrains.android.uipreview.ModuleClassLoader.load(ModuleClassLoader.java:181)
    at com.android.tools.idea.rendering.RenderClassLoader.findClass(RenderClassLoader.java:56)
    at org.jetbrains.android.uipreview.ModuleClassLoader.findClass(ModuleClassLoader.java:119)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.jetbrains.android.uipreview.ModuleClassLoader.loadClass(ModuleClassLoader.java:214)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
    at com.android.tools.idea.rendering.RenderClassLoader.defineClassAndPackage(RenderClassLoader.java:177)
    at com.android.tools.idea.rendering.RenderClassLoader.loadClassFromJar(RenderClassLoader.java:92)
    at org.jetbrains.android.uipreview.ModuleClassLoader.load(ModuleClassLoader.java:171)
    at com.android.tools.idea.rendering.RenderClassLoader.findClass(RenderClassLoader.java:56)
    at org.jetbrains.android.uipreview.ModuleClassLoader.findClass(ModuleClassLoader.java:119)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at org.jetbrains.android.uipreview.ModuleClassLoader.loadClass(ModuleClassLoader.java:214)
    at org.jetbrains.android.uipreview.ViewLoader.loadClass(ViewLoader.java:500)
    at org.jetbrains.android.uipreview.ViewLoader.loadClass(ViewLoader.java:254)
    at org.jetbrains.android.uipreview.ViewLoader.loadClass(ViewLoader.java:215)
    at com.android.tools.idea.rendering.LayoutlibCallbackImpl.loadClass(LayoutlibCallbackImpl.java:218)
    at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:336)
    at android.view.BridgeInflater.onCreateView(BridgeInflater.java:155)
    at android.view.LayoutInflater.onCreateView(LayoutInflater.java:720)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:788)
    at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:225)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)
    at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:863)
    at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:72)
    at android.view.LayoutInflater.rInflate(LayoutInflater.java:837)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
    at com.android.layoutlib.bridge.bars.CustomBar.<init>(CustomBar.java:90)
    at com.android.layoutlib.bridge.bars.NavigationBar.<init>(NavigationBar.java:52)
    at com.android.layoutlib.bridge.bars.NavigationBar.<init>(NavigationBar.java:46)
    at com.android.layoutlib.bridge.impl.Layout.createNavBar(Layout.java:325)
    at com.android.layoutlib.bridge.impl.Layout.<init>(Layout.java:151)
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:288)
    at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:384)
    at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:193)
    at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:547)
    at com.android.tools.idea.rendering.RenderTask.lambda$inflate$3(RenderTask.java:681)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Answer 1

尝试转到项目中的build.gradle(模块:app)文件，在那里，更改以下内容：

implementation 'com.android.support:appcompat-v7:28.0.0-alpha3'
implementation 'com.android.support:design:28.0.0-alpha3'

至：

implementation 'com.android.support:appcompat-v7:28.0.0-alpha1'
implementation 'com.android.support:design:28.0.0-alpha1

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