android studio（0.8.2）布局预览：NullPointerException在com.android.internal.app.WindowDecorActionBar.setHasEmbeddedTabs

Question

我最近更新了android studio到0.8.2。现在，当我创建新项目时，我无法看到布局的预览。下面是日志：

> Rendering Problems java.lang.NullPointerException   at 
> com.android.internal.app.WindowDecorActionBar.setHasEmbeddedTabs(WindowDecorActionBar.java:265) 
>   at 
> com.android.internal.app.WindowDecorActionBar.init(WindowDecorActionBar.java:217) 
>   at 
> com.android.internal.app.WindowDecorActionBar.<init>(WindowDecorActionBar.java:182) 
>   at 
> com.android.layoutlib.bridge.bars.ActionBarLayout.<init>(ActionBarLayout.java:98) 
>   at 
> com.android.layoutlib.bridge.impl.RenderSessionImpl.createActionBar(RenderSessionImpl.java:1620) 
>   at 
> com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:352) 
>   at 
> com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:329) 
>   at 
> com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:332) 
>   at 
> com.intellij.openapi.application.impl.ApplicationImpl.runReadAction   
> ... (ApplicationImpl.java:932)   at 
> com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run   ... 
> (ProgressManagerImpl.java:178)   at 
> com.intellij.openapi.progress.ProgressManager.executeProcessUnderProgress(ProgressManager.java:209) 
>   at 
> com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:212) 
>   at 
> com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcess(ProgressManagerImpl.java:171) 
>   at com.intellij.util.ui.update.MergingUpdateQueue.execute   ... 
> (MergingUpdateQueue.java:320)   at 
> com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:310) 
>   at 
> com.intellij.util.ui.update.MergingUpdateQueue$2.run(MergingUpdateQueue.java:254) 
>   at 
> com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:269) 
>   at 
> com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:227) 
>   at 
> com.intellij.util.ui.update.MergingUpdateQueue.run(MergingUpdateQueue.java:217) 
>   at 
> com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:238) 
>   at com.intellij.util.Alarm$Request$1.run(Alarm.java:327) 

Answer 1

它现在的工作......什么我所做的就是

1. 启动sdk manager。安装默认选择的软件包。例如。工具，其他

2. 安装完成后我重新启动了android-studio。

3。轰隆.....它工作....