新建的项目，不能可视化编辑，preview 空白怎么解决啊！！

新人王一个

求帮忙！！

刘某某

可能你的sdk有问题，更新一下

幺客

更换以下模拟器显示的版本

或者在style.xml里加个“Base.”

ak46zhm

我的AS2.1.2,5.1的sdk，新建base activty模板，出现了下面的报错，也是无法预览
Rendering Problems Exception raised during rendering: android.support.design.widget.CoordinatorLayout cannot be cast to android.view.ViewGroup (Details)

java.lang.ClassCastException: android.support.design.widget.CoordinatorLayout cannot be cast to android.view.ViewGroup
        at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:807)
        at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:64)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:782)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:385)
        at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:413)
        at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:321)
        at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:350)
        at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:520)
        at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:508)
        at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:967)
        at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:508)
        at com.android.tools.idea.rendering.RenderTask.access$600(RenderTask.java:75)
        at com.android.tools.idea.rendering.RenderTask$3.call(RenderTask.java:620)
        at com.android.tools.idea.rendering.RenderTask$3.call(RenderTask.java:617)
        at com.android.tools.idea.rendering.RenderService.runRenderAction(RenderService.java:371)
        at com.android.tools.idea.rendering.RenderTask.render(RenderTask.java:617)
        at com.android.tools.idea.rendering.RenderTask.render(RenderTask.java:639)
        at com.intellij.android.designer.designSurface.AndroidDesignerEditorPanel$7.run(AndroidDesignerEditorPanel.java:519)
        at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:337)
        at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:327)
        at com.intellij.util.ui.update.MergingUpdateQueue$3.run(MergingUpdateQueue.java:271)
        at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:286)
        at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:244)
        at com.intellij.util.ui.update.MergingUpdateQueue.run(MergingUpdateQueue.java:234)
        at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:238)
        at com.intellij.util.Alarm$Request$1.run(Alarm.java:352)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        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)

liuchunshuo

1、jdk的路径要设置，百度可查到不同版本的设置方法；2、jdk的版本要和android studio的版本匹配。

追风者

你的虚拟机没装好，建议用真机测试。