java 安卓。支持v7。小装置。无法实例化AppCompatTextView

Question

我在布局上遇到了这个问题

PS：我在跑步时没有遇到任何问题，但我想知道这个问题是什么，以及如何解决它

问题出在布局编辑器中

ScreenShot of the error

java.lang.NullPointerException
at 安卓.content.res.Resources_Delegate.getValue(Resources_Delegate.java:788)
at 安卓.content.res.Resources.getValue(Resources.java:1286)
at 安卓.support.v4.content.res.ResourcesCompat.loadFont(ResourcesCompat.java:212)
at 安卓.support.v4.content.res.ResourcesCompat.getFont(ResourcesCompat.java:206)
at 安卓.support.v7.widget.TintTypedArray.getFont(TintTypedArray.java:119)
at 安卓.support.v7.widget.AppCompatTextHelper.updateTypefaceAndStyle(AppCompatTextHelper.java:208)
at 安卓.support.v7.widget.AppCompatTextHelper.loadFromAttributes(AppCompatTextHelper.java:152)
at 安卓.support.v7.widget.AppCompatTextHelperV17.loadFromAttributes(AppCompatTextHelperV17.java:38)
at 安卓.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:81)
at 安卓.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:71)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.jetbrains.安卓.uipreview.ViewLoader.createNewInstance(ViewLoader.java:475)
at org.jetbrains.安卓.uipreview.ViewLoader.loadClass(ViewLoader.java:250)
at org.jetbrains.安卓.uipreview.ViewLoader.loadClass(ViewLoader.java:213)
at com.安卓.tools.idea.rendering.LayoutlibCallbackImpl.loadClass(LayoutlibCallbackImpl.java:193)
at 安卓.view.BridgeInflater.loadCustomView(BridgeInflater.java:333)
at 安卓.view.BridgeInflater.onCreateView(BridgeInflater.java:152)
at 安卓.view.LayoutInflater.onCreateView(LayoutInflater.java:717)
at 安卓.view.LayoutInflater.createViewFromTag(LayoutInflater.java:785)
at 安卓.view.BridgeInflater.createViewFromTag(BridgeInflater.java:222)
at 安卓.view.LayoutInflater.createViewFromTag(LayoutInflater.java:727)
at 安卓.view.LayoutInflater.rInflate_Original(LayoutInflater.java:858)
at 安卓.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:70)
at 安卓.view.LayoutInflater.rInflate(LayoutInflater.java:834)
at 安卓.view.LayoutInflater.inflate(LayoutInflater.java:492)
at com.安卓.layoutlib.bridge.bars.CustomBar.<init>(CustomBar.java:95)
at com.安卓.layoutlib.bridge.bars.StatusBar.<init>(StatusBar.java:67)
at com.安卓.layoutlib.bridge.impl.Layout.createStatusBar(Layout.java:224)
at com.安卓.layoutlib.bridge.impl.Layout.<init>(Layout.java:146)
at com.安卓.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:301)
at com.安卓.layoutlib.bridge.Bridge.createSession(Bridge.java:429)
at com.安卓.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:368)
at com.安卓.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:567)
at com.安卓.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:549)
at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:863)
at com.安卓.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:549)
at com.安卓.tools.idea.rendering.RenderTask.lambda$inflate$1(RenderTask.java:680)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

Answer 1

我也有这个错误，我通过修改res/values/styles中的父主题来纠正它。xml：